Yes it should be legal for an adult to take anything they want, as long as it doesn't turn them into some psychotic face eating zombie person. The government should not protect us from ourselves. They know everyone does whatever they want anyway. Making things illegal just gives them reasons to arrest you and confiscate your stuff. It's all about power not public health. They've been reports of police confiscating people's money because it was too much. Like one guy had $10,000 confiscated because they said they suspected it was for a drug deal. And the Supreme Court upheld it. They said they weren't punishing the man they were punishing the money. So a guy had his property taken from him for no reason other than a suspicion it might be used in a drug deal. That's the kind of power they want and why they keep things illegal.