Pubs are Adult spaces children are allowed, not everything needs to be child friendly, not everyone has kids. Surely some adult space is allowed.. Are pubs adult spaces? It sounds more like they are places like restaurants, cinemas, theatres etc where you are expected to behave in a certain way so others can enjoy themselves.
I have no problem If they behave but running about in a environment when people are carrying stuff about is a nono. yes so stop people behaving inappropriately don’t ban people who’s only crime is they are the same age as someone else who fails to behave appropriately.