All three of mine are still bathed and in bed by 7. We've just stuck to the same routine since they were babies, and whilst they still need this amount of sleep we'll carry on. They're 7, 6 & 3.
For two nights of the week, however, the older two don't go to bed until 8 as they are at beavers/football. And I relax it slightly at weekends (although not too much).
Even going to bed at this time they don't wake until 6.30/ 7, so the timings suit our family.