one thing's for sure (and apols for the derail), if your child is advanced, gifted, above average, or any other way of saying that they are way ahead of their peers in one or many areas, you are NOT allowed to talk about it or you risk the wrath of some who will snap your head off for being some sort of deluded/hothousing/stage-parent nightmare, when in fact you might just happen to have a particularly clever child. You can talk about problems, you can talk about achievments (but only if they're in line with what your friends' kids are achieving/have achieved), but if you dare talk about something that makes another parent feel that their child is not doing as well as yours, you will be accused of boasting (at the very least). It's really quite nasty.
My daughter is a bright, normal child. My friend's daughter is unbelieveably advanced, physically and mentally. At two and a half, she can swim proficiently, can ride a bike, she's been talking since just over one, she can read 3-letter words, she's just amazing. My friend is hated for it. She makes a special effort NOT to boast, but sometimes she'll answer if someone asks her a direct question about her daughter's progress, and then she gets slated for it. Very unfair.