My children are 8 and 12 and we've not had an evening for basically that long. 8 year old is in bed by half 8 and older one up later but sorts themselves out. We're always washing up, prepping lunches, putting washing on, unloading dishwasher, until at least 10pm at night. I mean at least one of us is (obviously not me tonight as I'm writing this). I saw someone who said they watch TV together then one of them goes and reads and the other plays video games- are they getting in bed at midnight? Obviously when they were younger and needed more help with sleep and eating I accepted we wouldn't have much time to ourselves, either together or apart but we still don't seem to be getting any.
Also I'm aware we do have an evening but it seems to be spent on routine and never pleasure!