Ah...gotta love 15 hour days at work....
Lina, I think linking your trouble area, bedtime, to allowance is fine and TOTALLY up to you. What is important to mom needs to be writen in stone and important to the kids - to keep mom happy!!! Or, we make this face...
For me, those scripted minutes of Mando's before bed routine allow me to get her out the door well rested. That effects her whole day - and mine! Plus, parents need time in the evening. Quiet time to not worry about matching socks and book bags. Ahhh. You have a whole bunch of little people to get out the door so I can't complain! We could trade 9 year olds
FYI, Mando's routine from school to bed is:

homework then launchpad her bag as soon as she is done

take care of the cats, 5 steps: food, water, scoop, wash hands, cuddle

do a 5 minute pick-up or a fast chore like her laundry

help with dinner and the dishes

brush hair and teeth and bathe, then tidy the bathroom

lay out her clothes and shoes

read for 20 to 30 minutes
In the morning, she is good to go in 15 minutes from bed to door.
Rhonda, you would have told on me A LOT.