We have been camping since we were 24 years old - I'm now 80. The basic principle we have applied to successful camping is that you can do what you like provided that it does not impinge on the enjoyment of others. This applies day and night. We enjoy our hobby (more a way of life, really) in an enviroment of close proximity and poor (negligible) insulation, and this makes observance of these principles not easily achieved.
Referring to the day and night bit, last winter at a Spanish campsite we have visited each year for at least the past 8 years, a group of caravanners (3 Brits and one Norwegian) set up a boules group on the our sandy terrace of the campsite (despite there being a remote designated area for this purpose) and one end of their pitch was right outside our awning door. At first it was merely an irritation, with all the raucous shouts of "you were robbed" "whose a star, then" etc. etc., but they were really enjoying themselves so we tolerated it. However on one fateful Saturday, it went on, louder than ever, for FIVE HOURS. In the friendliest possible fashion I broached the subject, received (only) some adjustment of their pitch and instant unpopularity.
The hilarious postscript to the story is that a few days later, at a communal picnic, one of the lady "boulers" and her husband were regaling all and sundry with a recent trip they had had to New Zealand, and she said in a loud voice that they had found a heavenly campsite in New Zealand but shortly after settling in, some people had started playing football behind their camper. But, she said, we soon put a stop to that !! (Her husband gave her a look that could have killed).