No, I just get tired of people lamenting the difference between today and the perfection of their own rose-tinted days of parenthood whilst they sit tutting into their coffees if a child so much as speaks in a public place. If someone is behaving unreasonably in a cafe, pub or anywhere else you should just tell them politely, whether that's a parent with undisciplined children, or a rude older person being passive aggressive. Maybe it will help them rethink their behaviour.