I'm going to point out a kid's accent
Why do you need to point out their accent?
I want to help the kid
The kid might feel weird if you point out his accent. Especially since he doesn't know you well enough. It would be better to leave it alone.
I disagree. If you have the power to help someone why not do it?
You're not helping though if you point it out in front of others. Try to just not point it out and help them if they need it or if they even want any help with their accent.