I dont think 10/11 is that young...
You get the whole puberty talk etc in yr 5, and most kids are old enough to get to school by themselves in yr5/6 and have at least started maturing
In our area they had dances for young teenagers - i remember going in yr 4 and asking various chicks to dance. I had friends with gfs in yr 6, and I babysit a 10yr old who tells me about her crushes
Anyway, its only the developed ones that would be doing this - i.e. those who have sexual feelings and can enjoy it. No one is forcing poor innocent kids to suck dick