I created a home-based program (week to week) where we learned everything I could find that would normally be in a regular pre-school curriculum.
We worked for 3 hours every morning "studying", and he was 4. I made it fun. I made it productive. We took breaks. We had snacks. We had recess. It worked.
By the end of the summer, he was reading and more prepared for Kindergarten than any of the kids in his class.
Yes. If parents stop complaining, and get down to work, and make this fun for their kids, and have a positive attitude, even the youngest students can learn from home.
Now days we even have Zoom options, so we WILL be able to get kids eye to eye with teachers, friends, other students. I would have loved that 8 years ago.