He’s 19. You can’t expect a 19 year old to be a good tipper. They have little to no money. Most servers wouldn’t care. Stop making a stink about it and let it be.

The way your whole friendship/relationship revolves around being CF 💀 like do y’all talk about anything but how much you hate kids and how you’re sooo much better than people that do have kids? Get a grip. There are kids everywhere and it’s their decision to have a wedding that is inclusive for all their loved ones. It’s better you not go than bring your bad energy around those kids.