i don't think it really matters about their age, or intelligence(unless they don't know anything about playing videos games), what matters is their maturity, i know some 8 year olds that are more mature than some people that go to my middle school. and yeah beggars are really annoying, but you know whats just as annoying (maybe even i little more), people how give to beggars, if you do that then the beggars will keep begging and be even more annoying.