I don't like the idea of any age minimum which is above the current 13. I actually managed to persuade Undine - without ever shouting (using all caps), or getting mad at her, or threatening her, or insulting her - to stop PMing me saying "BOW DOWN TO ME YOU INFERIOR PEASANT".
That takes skill.

Wait... does Undine read these forums?

Ahem, back on topic... I'm 15, but most people will attest that I've always been as intelligent as I am now. Age therefore has
nothing to do with maturity or intelligence. Remember Pachuka? He was 16, I think. =P That's my opinion... perhaps I should stop bragging about my maturity and let other people post...