I'm going to serve children before their parents.
Why would you serve children first?
No one will notice if I do.
Wanting to help children first is understandable. Just be sure that parent's aren't feeling left out too. They might be exhausted from taking care of their kids and shouldn't be neglected.
It doesn't matter. They will complain about their kids eating their food.
Any decent parent wouldn't be mad that their children eat first. So just serve the children first without feeling any worry.