Well, for me it was from age 7 'till 12
They weren't particularly fond of freaks like me.
A very close (straight) friend of mine admired me for keeping my head up and resist. Resistance is futile (they won't stop anyway), but it helps against being assimilated, if you understand what I mean :-).
Gosh, was I glad that after that I was going to a normal (well, kinda, more like hippy) school, twas like coming home.