We eat together most nights and quite a bit earlier than that - 5pm usually.
I don’t like to eat after 6pm really if just at home - got into the intermittent fasting habit (obvs will make exceptions for meals out etc).
But mostly it’s just because it suits us best, DD gets up at the crack of dawn if not before, that’s whether she goes to bed early or late. So in order to make sure she gets enough sleep we need to be starting wind down, bath and bedtime around 6ish, 6.30 latest, so she’s down and asleep for 7ish,
I work from home as does DH more often than not, he starts work at 7.30 in the morning if not earlier so is generally done by 4, so even if he’s in the office/ on site he’s home for 5ish. Im part time and officially finish work at 3, though if I need to do more then I’ll do it after DD has gone to bed.
DD is starving from the second she comes out of school and the constant snack demands don’t stop until we’ve fed her a decent dinner. It’s important to me that we eat together, DH feels the same, and I think it’s paid off in terms of how well she eats and just in general for us to sit down together.
It’s not every single night DH does work late one night and then eats on way to his sport, and one night a week I do a fitness class at 6 and can’t eat before or I’ll be sick. But 5 out of 7.
I’m sure as DD gets older timings will change, and there may be more clubs etc.