A little naive, IMO. Parents don't actually have freedom and flexibility because they are constantly watched by paranoid neighbors on a hair trigger for any possible sign of abuse. When the government creates a rule like this, it actually enhances parental freedom by officially declaring that leaving your kids alone is OK. Personally I'd like to see the age limit a little lower, but this is great news for parents.
And now the paranoid neighbors have clear rule to stand on if the kid is under 10. Gray areas go both ways.