This thing was written by someone who doesn't live in a developed country... There's no way to do those actions in a developed country. Does this person think that just random children are available to be given food to?
Arguably I don't live in a developed country, but it's a US state...
heh yeah and some kids are very well trained to defend themselves. An offer like that to a larger than average pre-teen or teen may result in way more than you bargained for. If they see you as a threat and the flight/fight coin toss lands on fight, well, you're in for a ride.
Getting permission to post photos of kids on social media is probably the hardest part.
This shouldn't be too hard, just ask their parents