Is it OK to exclude other people’s kids from a party?

I am hosting my wife’s bachelorette party with 5 other girls other than her. A couple of them have babies (under 2yo) and the venue we have picked is completely childfree. <br><br>We expect the event to run to 11 pm-ish with drinks and general adulting that may or may not include other activities. <br><br>The hostesses of honor (my wife and her best friend) would like to exclude babies from the event. That would mean 2 babies have to be left at home with their fathers. <br><br>We all know the mothers in question would be much more relaxed without their babies there and we understand that the other guests may not feel too comfortable with babies around. <br><br>The thing is - one of them will be breast pumping and one bottle-feeding. Both are OK with other people looking after the babies for a few hours. <br><br>As the organizer, I feel like I need to sort this out now. Both mothers are close friends with the hostesses and I want to find a solution that will make everyone happy. But I feel like I am on thin ice with this - the event is scheduled 6 weeks from now and I have to let them know if they should make other arrangements for their kids?<br><br>Edit: I work in events and I simply rent out the rooms that come without babysitters. I also like to think ahead - if I were the mother, I would much rather know 6 weeks in advance than 2 weeks. Also, the babies are small enough that they could be left with other babysitters.