Been there, done there... no problem even with a 80-200 mounted on as long as you are pointing at the right direction
i was there for a family/friends picnic
and was shooting children, it seems that they don't mind
unless you act like a perv
make sure your friendly smile is a smile and not a smirk =P
i wouldn't shoot kids in a western country. it seems that in asian countries it's still more lax and people aren't as worried about perverts.
it's sad that there are people like that who spoil it for everyone else that has good intentions, isn't it?
5D | 24-70L | 28mm f/1.8 | 580EX