Dd nearly 13 and dd11. The bedtime routine is still quite involved as both parents go upstairs and tuck them in, one does a prayer. It tends to involve quite a bit of going up and down as they aren't ready when we are etc.
I am wondering whether your kids that age put themselves to bed? Mine def can, we just haven't moved to that.
Dh thinks it is lovey and I am harsh, but bloody hell, I just want to sit down before 2130.
(There is still a younger child as well but small steps)