Totally

not missing anything CC related if you skip it
Awesome! What did you do for your DD? I think we are hyphenating. With mine first lol
Not that you asked me, but I'll butt in anyway. As this game is all about data, I'll throw some your way.
I have two sister-in-laws that kept their name (married to hubby's brothers). All the kids are in the father's name alone. Moms kept their names for professional reasons, which made sense, especially when one of them is in the mental health field. (Although nowadays it's much easier to link people together even with different names so for the savvy crazy it's not much of a barrier now). At school and social gatherings with the kids' friends they are just Mrs Kid's name or Kid's Mom and it's easy and it works. For the parents that they interact with on a more regular basis, the other parents know her actual last name but it's easier for kids to just call them by the kid's last name. SIL's are part of that family, whether they like it or not!

, so it doesn't hurt them to be associated with the name in those situations. Their kids don't think it's weird or anything with Mom not having the same name. AFAIK they just explained that sometimes Moms have the same name and sometimes they don't. (Happens with divorce and remarriage and all, so that's just the easiest explanation that covers all situations)
I had friends growing up that had two last names or hyphenated names. They generally went by whatever their first, last name was for simplicity. One friend's parents went a little different and she had a different last name than her whole family, likewise with her brother. She got First, Middle, 1st Last Name (Mom's), 2nd Last (Dad's). No hyphen, both names were her last name. Her brother was First, Middle, 1st Last (Dad's), 2nd Last (Mom's). Both her and her brother just used their 1st Last Name for everyday purposes. It got complicated when they all needed to fill out forms and do things officially, especially if they had ID in just one name. A few thought about changing it to just be the name they used most. Others didn't mind.
And not that you should make name decisions based on current IT trends, but long names do pose a wrinkle in electronic records. Especially for institutions that are working with old processes when everything needed to be fixed length.
This is exactly my reasoning. I have accomplished so much with my last name and it’s who I have been. I don’t want to change it. Our last names are short so hyphenating won’t be super crazy. But I’m not 100% sure that’s what we will do.
ETA your reasoning for wanting her to keep it is adorable and I’m telling SO to say this anytime his family or something rolls their eyes lol.
Just some food for thought I'll give you what I did.
I didn't have strong feelings if I changed my name or not. I really didn't think about it much until closer to the wedding and then thought, hm, we should probably discuss this in case we need to know for the license (turns out in PA you don't). So I asked hubby what he thought about it and if he had a preference. He said he always thought we'd have the same last name, just never thought of it any other way, but thinking about it now it doesn't really matter, it's just a name. You know how you can feel one way but think other because logic trumps irrational feelings? I could kinda see this was where he was, and since I didn't care much I decided I'd change it as irrationally it'd make him feel better and I don't have any real compelling reasons to keep it. Sure it felt like an identity at that point and felt weird to think about changing it, but it's a little thing in the grand scheme of things and I am happy I could do it for him. But I'm practical and when I looked into what I'd need to do to change everything and how much it'd cost to get official documents to do it I decided on the slow approach. The big one was that I was outside of the free passport change window. So we decided I'd just change it for when my passport renewed that way I'm not paying for it twice.
This throws people off

I thought it would make everything easier at work by keeping my name as none of the clients has to be inconvenienced to change mailing lists, we don't have to order new business cards, don't have to wait for the IT guys to change all my stuff. What's the first thing everyone says when I get back from the honeymoon? "Congratulations! What's your new email address?"
I think I spent more time explaining that I made it easy, you don't have to change anything, than actually changing stuff. But that's fine, you do what you do.
So FF several years later when I finally get around to updating everything with the Feds and need to finally change it at work so my W2 info matches my SSN info. In the past when you changed your name it was two separate processes for updating your official employee record and getting your email/system accounts changed. Most people were bothered by this but this would work out
great for me since I wanted to keep my email and everything the same. At some point they decided to get efficient and streamlined the process so when I put in for my employee record to be changed, it was tied to our system ID and then that change automatically triggered IT to update the email address too.

So randomly I start sending out emails in a completely foreign name to some people.
At that point I then had to send out updates about my name and email address change, which prompts a flurry of "Congratulations" emails from folks that didn't realize I had been married and confusion from the others who met me after the wedding so didn't realize I didn't already change the name (and worse, thought I got divorced). So a bit of a headache but nothing game changing and everyone adapts. I have some certifications in my previous name but that's just paper, in fact for one of them I just go in and print a new Cert with the name change if I wanted to. There are easy ways to link paper together. Even if you're in a field that publishes, cross reference will pick all that up now.
A very long winded way to say these two things
I thought changing the name would just be a formality. Like I'd say "Y" but deep down feel I'm "X" and it'd be like an actor speaking in a role. But then I changed it and the name just became a word - both of them, actually. My identity isn't tied to a single word. (A rose by any other name, if that makes sense) Could just be me but I got a different perspective once I actually did it.
And it's not like you're stuck with your decision forever, if you want to change later you can and it shouldn't diminish any previous accomplishments nor erase record of them. But if you had any desire whatsoever, no matter how small or for what reason, I'd consider it hard and do it while you're starting your career rather than later. While it feels like forever to get to this point, it's just a blip in the full timeline of your life and it's easier to move past it now. Also nothing wrong with keeping it

Much cheaper in the long run.
(although I could probably change my name to Gift Card Recipient right now too and not care so could be a good time to take advantage

)