If her birthday is very close to Christmas, her parents might choose to celebrate her 'half birthday' in June instead so that it won't be overshadowed by all the goings on related to Christmas. My brother's birthday is Dec. 20th and he tells me he always felt that his birthday was inconsequential compared to those of myself and my other brother because people brought him one gift for 'birthday and Christmas combined' and because a lot of his friends weren't able to come to his birthday parties because of Chrismtas celebrations and activities, so if her parents celebrate her 'half birthday' it might alleviate some of that.
Another friend of mine has a child with a late November birthday. That child never has her birthday party in November, because she always wants a pool party. So she has her pool party around Memorial Day and they celebrate her birthday then. Same thing.
I don't see an issue if the child is having the half birthday party to REPLACE the birthday party. If it's a second one, then too much and ridiculous, unless it's something done just within the family. But if it is a replacement, why not?
What do you do if a child has a mid-July birthday and wants to celebrate the last week of school with their friends by having cupcakes? Do you allow that or are they out of luck?
YOu have a birthday celebration and invite her school friends like normal.
Luck has nothing to do with it. What does a child do for friends in July? most children (not all but most) in elementary school are local so do all his/her friends disappear?
Then what happens to a kid who's has a birthday in september and wants to now start celebrating 1/2 birthdays? do we randomly start moving birthday celebrations. my kid is born in July and wants a skiing birthday party, do I then have to have a 1/2 day birthday celebration for him in february so he can go skiing?
when the heck did childhood become so accomodating? don't like when your birthday party falls? that's easy, make up a different celebration? team doesn't perform well, hey no problem will give you a trophy any way.
I have no problem with celebrating when there is some thing to celebrate but what's next. Oooh Johnny had a bowel movement today? parrrty!! I managed to roll out of bed today, whohoo

start the ticker tape parade.
we already see the result of handing out trophies for each and every little thing. Kids have major freaky deaky melt downs when real life hits and then they have absolutely no skills what so ever to deal with the fact that no one else thinks they are princes and princesses.
Personally I appreciate my celebrations when I actually accomplished some thing, I think my kids do so also. I
like having special occasions. If I do it every 3 weeks it no longer is special. case in point, my cousin who is on her
6th marriage. and every marriage she has a big wedding celebration saying how magical and special it is. SERIOUSLY? honey after 6 weddings, nothing special about it, just another excuse for you to buy a dress.
Just my take.