Yes you can find a way to goof off in any class instead of doing your work. Isn’t that the whole point of this discussion? To remove ways to goof off, you know, smartphones. Ban them in class. And just like you can catch people playing video games in computer class, you can catch people using their phone in class. Just because some people will break rules doesn’t mean we throw our hands up and say ok then no rules.
You’re really comparing this to teaching abstinence? Wow. And then you rage against something as basic as rules, blaming rules for what seems like everything you think is bad. Ok then. Cheers.