My wife and I bought in when we were 26, and have gone 11 times in 5 years.
You’re not too young if you: a) can afford the upfront cost without financing and b) know that you can afford ~$1,500+ per year for maintenance fees, park tickets, food and travel to make your trips a reality.
Key advice: buy where you want to stay. As people have stated, SSR is broadly viewed as the best “deal”, but it is getting harder and harder to book elsewhere at 7 months - that intensifies if you’re looking for studios elsewhere and is impossible if you’re looking for studios elsewhere during peak times.
Having gone to Disney, I assume you have a favorite resort or park? If you love Magic Kingdom, you could be kicking yourself if you don’t own at BLT/VGF/PVB/CCV/BRV - not having to take a bus to your favorite park is huge. What kind of theming are you into? If you love theming, speaking to the MK resorts, Wilderness Lodge and Poly have a noted advantage over BLT and VGF.
How long do you want a contract? Boulder Ridge may be a good deal on resale, but 2042 isn’t that far away. Honestly, that may not matter to you if the resort/value proposition points you there (a lot of people will sell their contracts well before the stated expiry).
Just scratching the surface here, but keep up your research. Don’t assume
DVC will save you money - the vast majority of us have caught add-on-itis over the years, buying more points, staying longer in nicer accommodations, taking more trips and ultimately spending way more at Disney than we ever anticipated when we first bought in. In these five years we’ve owned (resale first), we’ve added on direct twice!
Best of luck!