Personally I care not a jot when other people eat, bath or put their children to bed, nor do I think it's British to do it one way or a class issue. Let's face it, people used to go to bed when the sun went down cause candles were expensive
But what does wind me up is when late bedtimes = ignoring children and their needs. IMHO children should be in bed at a reasonable hour on a school night so they can concentrate the next day. Parents should know how much sleep their child needs to function properly, and not use excuses about being relaxed or Latin or bohemian or whatever to neglect their child's sleep needs.
Also having some respect for people around you is good - we had a lovely black tie NYE dinner party, several couples came and brought children, all stayed in our house (a tight squeeze!). All children bathed and put to bed by about 9pm (stayed up late for a bit as it was a party night, but they were all getting overexcited and cranky by about 8.30pm).
All except one 3 yo, who is the PFB of one of our friends, who was allowed to wander around doing exactly what she wanted all evening, completely disrupting the other kids' teatime by being allowed to eat sugary snacks instead of normal tea, getting all the toys out again when we were getting them all put away so kids would wind down and start going to bed etc. And then wasn't put to bed at any point, just allowed to wander around, completely ignored by her dad, all in the name of flexible/liberal parenting, until she crashed out on the sofa.
So instead of black tie elegance in my lounge with champagne and witty urbane conversation , I had Monsters Inc on the DVD and a 3 yo bouncing on the sofa until 11pm.
Thank god she fell asleep before midnight.
I was really put out. His excuse was that she is half Italian and so that's how they do things. Well fine, but this is a different occasion, she was welcome to watch a DVD upstairs in the bedroom, where her bed was FGS. She wasn't taking part in the dinner party or talking to anyone, so it wasn't a case of raining on her party. It was just rude.
Rant over.