There is no reason to force someone to choose between feeding their family and putting something that isn't proven to work into their body.  People/teachers can do their own research to see what might be beneficial to them.  Most people have been exposed to covid by now, so let them be the decider on their health.  If we open this door, what is to say the government will not start mandating that women can't get pregnant during their job contract, or contract with the military and then mandate tubal ligation, or abortion.