We had DD move up when she was 12 to play 14U. It was a chance to play for a great coach. The plus side is that she learned a lot and got much better.
The downside was that she didn't connect with the older girls and had a hard time feeling physically over matched. She did fine and when she was 13 was
a great player, but I don't think she really ever got over it. In the end what happened was she thought that she was doing it to make me happy versus what
she really wanted. She lost out on a chance to be a 12U stud for a year. If I could do it again I wouldn't even consider it.
In the end if you decide to do it, make sure that your DD really wants to do it. If she does the benefits of playing up are tremendous, but I just keep an eye out
for the social interactions.
The downside was that she didn't connect with the older girls and had a hard time feeling physically over matched. She did fine and when she was 13 was
a great player, but I don't think she really ever got over it. In the end what happened was she thought that she was doing it to make me happy versus what
she really wanted. She lost out on a chance to be a 12U stud for a year. If I could do it again I wouldn't even consider it.
In the end if you decide to do it, make sure that your DD really wants to do it. If she does the benefits of playing up are tremendous, but I just keep an eye out
for the social interactions.