as a kid, i was out delivering catalogues with my brother, and in one day, the SAME people stopped us three times and just wouldn't leave us alone. now, we were 10 and 12 - there is no WAY we should have been "ambushed" - at that age, you're not mature enough to make decisions about your religious beliefs and they shouldn't have stopped us at all
I completely agree with you BG, that shouldn't have happened. I know it used to happen, but we have since been instructed not to speak to children under at least 16 years without parental consent. Obviously we can't ask everyone their age, and I have gotten caught a few times asking very young looking women if I can speak to their Mum only to find they ARE the mum! But we are definitely supposed to put in the effort to speak only to adults - I often get told 'Mum and Dad are asleep', to which I say someone will visit them later.

Your point about not being mature enough to make decisions is completely true - this is also why we don't practice christenings (just as a side point).