Students needing additional tutoring is normal, but it's also a signal that the educators need to reevaluate why students aren't meeting expectations from the existing curriculum. How many broken curriculum have been perpetuated because the top performing students had to spend hours after class filling in the gaps on their own dime?
Wouldn't a better invested (not just money, but also socially) public school system support students so they don't need to seek outside tutoring like what you're describing?
And I do believe homeschooling should be prohibited. Once again, a better invested (money, socially) public school system would solve whatever problem parents think they're addressing by way of homeschooling.