Just parent and educate your children mate, it's simply your personal failure. Have you tried talking to them, you would be surprised, they are not dumb.
Besides this legislation won't solve the problem, it will simply postpone it, while at the same time it will require everyone to do identity verification to access anything. But it's disappointing to see these kind of comments here, as you are clearly individual with limited technical abilities.
Come next election, it will be surprised Pikachu face from many.