Not if they were raised from day one to understand that they each have their own friends and that just because the other is invited to something doesn't mean they both are.


Not if they were raised from day one to understand that they each have their own friends and that just because the other is invited to something doesn't mean they both are.


It breaks my heart that she is trying to befriend these other children and get shut out because she is too little.
That is the thing--She is too little. 

It breaks my heart that she is trying to befriend these other children and get shut out because she is too little.
I see this as a different situation than the OP. When a group of kids is already playing, it's rude to suddenly decide to exclude one.I have three daughters. The two older girls are very social and we have an apartment building across the field in front of our house (We actually lived there for a little while). It bugs me to no end when my middle daughter comes home crying because they were all playing outside and decided to go inside, but the mom wouldn't let her come inside too.
It breaks my heart that she is trying to befriend these other children and get shut out because she is too little.
I have come to the point of not letting them go over there to play because its too painful to pick up the pieces and I am not about to tell someone who to let in their house.
Now if someone calls and asks if one of them can come over or spend the night, I would never say... well you gotta take em both!

I agree that 3 girls can be a nightmare. BUT, I can kinda see the other Mom's point too....the girl who didn't get invited would probably be home, in tears, that she was left out. I would NEVER have told your DD it was rude to just invite one though, that is just RUDE, if you ask me!
Why?
...and my late DMIL always insisted that they be invited everywhere together. What ended up happeneing is because no one wanted the Bad Witch around, the Good Witch didn't get invited too many places. And I will tell you, she is resentful of it to this day.This is why I hate the demise of neighborhood playing. When I was little, everyone of all ages was outside playing. We all learned how to play together, all ages, all sizes, both genders. We learned from each other, learned to socialize, and accepted everyone. Sure there were skirmishes. But for the most part, kids learned tolerance and acceptance. Kids learned how to play with everyone. Little ones learned from big ones, big ones learned how to be caring and considerate. And yes, sometimes it went awry but overall, I believe the experience was a positive one.
Fast forward to today. Because we've decided that kids shouldn't play outside unsupervised, they no longer practice group interaction. They no longer learn how to operate in a group setting unless it is supervised and coordinated. As a result, parents host play dates that exclude and I'm going to add that it's their right to do so because someone will quote that phrase out of context and jump all over me.
Don't get me wrong. I love the control play dates provide. But I also see the downside. And unfortunately, exclusion is one aspect that is regrettable.
So while it is totally, completely, and absolutely within you and your child's right to pick and choose, I think we've lost an important facet of childhood. JMHO.
Their siblings watch out for them and OOOH boy have we had some knock down drag outs in the neighboor hood with kids...but that's life, they'll learn to work it out. 
I think it's just one more example of what I begun to call the "Special Snowflake" syndrome.
Our children cannot be hurt, disappointed or upset in any way. Everybody gets a prize, everybody makes the team. It's ridiculous. Then they grow up and when "real life" hits them with disappointment, they can't deal with it.

As an aside, my DH has twin sisters...one is wonderful and one is a nasty nutcase....I call them the Good Witch and the Bad Witch...and my late DMIL always insisted that they be invited everywhere together. What ended up happeneing is because no one wanted the Bad Witch around, the Good Witch didn't get invited too many places. And I will tell you, she is resentful of it to this day.
This is why I hate the demise of neighborhood playing. When I was little, everyone of all ages was outside playing. We all learned how to play together, all ages, all sizes, both genders. We learned from each other, learned to socialize, and accepted everyone. Sure there were skirmishes. But for the most part, kids learned tolerance and acceptance. Kids learned how to play with everyone. Little ones learned from big ones, big ones learned how to be caring and considerate. And yes, sometimes it went awry but overall, I believe the experience was a positive one.
Fast forward to today. Because we've decided that kids shouldn't play outside unsupervised, they no longer practice group interaction. They no longer learn how to operate in a group setting unless it is supervised and coordinated. As a result, parents host play dates that exclude and I'm going to add that it's their right to do so because someone will quote that phrase out of context and jump all over me.
Don't get me wrong. I love the control play dates provide. But I also see the downside. And unfortunately, exclusion is one aspect that is regrettable.
So while it is totally, completely, and absolutely within you and your child's right to pick and choose, I think we've lost an important facet of childhood. JMHO.
Maybe my neighborhood is the exception. The kids in this one are always outside-unsupervised. My boys play outside with a whole gang from the minute they come home until I drag them in to do homework. The little ones hang out as well if the big sisters/brothers are there. Are we the only neighborhood left? My boys play in the woods. Yesterday they were all outside in the snow. This is why I rarely sign them up for anthing, they just want to play.
I hate the term "playdate". Not so bad for the young ones but give me a break-does a 12 year old really need to refer to it as that term? This is a relatively new concept-when my oldest three (21, 17, 15) they just played. Now kids have to get invited and make a date.
) the happier they are. 