Homeschooling during covid was a failure here for many reasons but one of the main ones was.....parents still had to work even if at home.
For the lion's share of homeschool families, one parent (Mom, 95% of the time) stays home with the kids.
Again, you're not just staying in the house teaching. You're doing field trips, going to co-ops, educational fairs, sports clubs, extracurricular events (4H, AWANA, Scouts, Pathfinders, etc.), and library meetings.
That's awfully hard to do, if you're also working at the house (unless you do that by day and work at night).