Our local branch library is a hive of industry. During the week it acts as a resource centre for the school next door, so there are children coming and going all the time. Then most days there is some form of group activity taking place, from toddler reading groups, poetry readings, craft groups and citizens advise drop in clinics. It's a long time since I can remember anyone getting shushed.
In fact I think our local pub is quieter during the week days.