I am in the younger ‘hump’ of membership (aged 28) and have a 3 year old daughter. I agree that it is important to have no-children spaces (such as as the bar). As previous commenters have said, it is often those with children who most appreciate some child-free time and space!
On the other hand, I am generally in favour of a more relaxed approach to “rules”. I have no issue with, for example, a parent coming into the Bar to order some drinks with their child by their side and there was a sense previously that one mere step into the Bar with a child (even if they were completely silent) would be met with a telling off from some person or another.
I have not noticed an issues arising out of the rule change.