You'd be surprised. My cousin and i used to play together a lot when we were little. He was shorter than me back then. But when we he moved and we met at a mutual cousin's graduation party, he was a foot and a half taller, put on a lot of muscle, and was sporting a mustache that i was secretly envious of. I think it varies.
I would have a problem identifying my childhood friend as well. Its been years and even though I remember her name and what we did, I wouldn't be able to recognize her now.
When I first read this I was just like that, but now that I read it agaen it kinda makes sense
LOL, you think that's not possible, and yet I didn't recognize my ex-boyfriend from middle school! He knew me (though I think he just read my name tag).
I find it HIGHLY unlikely that someone could forget the face of their childhood playmate after only 7 years, even if he has long hair.