Completely agree with oldbirdy and DD is 11. She comes home knackered. As do I. I don’t manage anywhere near 10000 steps on a work day.
Drive the six miles to work via school, ride my bike when I can which depends on my work diary, whether I need to do the school run and, this year, my health.
Park, cross road, sit at my desk for anywhere from 9-13 hours if I have evening meetings. The only place I go to is our to get a sandwich for lunch and/or a ready meal for dinner if I am working very late. Minimal walking during the day. Home, in the dark for four months of the year.
Rural living without street lights/pavements means walking on roads doesn’t happen.
I often do 7-8 miles on the three days a week I don’t work, and most days when I am on leave but it definitely doesn’t happen when I am at work.
Doing this as additional walking at weekends only would mean 20 miles a week, fine as a time rich Singleton, not so fine as someone with a family who doesn’t see enough of them due to work.
So I would consider an extra 1000 miles an achievement.