No one under 21 🚫

Definitely stick to your decision. You made it for a reason. You have EVERY right to not invite certain people, and you have Very valid reasons as to why you don't want to. Under age drinking is the biggest concern I have for my wedding also, but I don't have a lot of guests who will be under 21 that are liabilities, so I'm not so worried myself. However, I totally understand where you're coming from and I don't think it's fair for those you've already excluded if you were to include others who fell under that under 21 rule. It's also not fair for your FMIL to impose such requirements. I think you and your FH need to sit down and talk first to each other about the situation, and then, as a united front, talk to your FMIL, with your FH leading the conversation. Also, maintain control of the conversation ( if you've ever working in a call center, you'll know what I'm talking about), so it doesn't get out of hand.

Your wedding, your rules.

YUP.

We're doing the same. If they aren't legal drinking age they aren't welcomed. Stick to your guns.

It's your wedding, and if you've already told your family no one under 21 it wouldn't be right to allow your future MIL to try and talk you into allows those cousins. I totally understand your point of view on this. I wouldn't give in.

I've been stressing about this too and doing extensive online research on the etiquette. Ultimately my take away is to stand firm. This is your wedding- your guest list should be decided by you and your FH, period. I'm sure some people will be offended but there will be people offended you got chocolate cake instead of vanilla, london broil vs prime rib, etc. It's taken me a bit to get my head right about this decision but that's where I'm at. FYI, I know there's some debate about this but on my STD's I put "Adults Only Celebration- make it a date night!", so that the expectation was set up front- particularly for out of town guests. I'm leaving it off my invites but am including it on my website. I feel like simply addressing the invites to those invited will still cause confusion- I'd rather risk sounding harsh up front as opposed to having to make an awkie phone call to"uninvite" children that may be written in on the RSVP. PS- this is our second marriage. The only under 21s allowed are my two step daughters (17 and 20) and our 5 nieces and nephews (17-19).

Agreed there will be no children at our wedding