If you’ve had, or been to, a wedding that was child free did you find that some guests left earlier because they had to go home to let the babysitter get off? Or did it mean that guests could stay until the end as they didn’t have tired children with them?
YABU - child free weddings allow guests to stay later than they might have if children had been with them.
YANBU - guests tend to leave child free weddings early to get back to the babysitter