Since the beginning of time, there have always been people who have wanted to “save others from themselves”. If drugs did not exist, these do-gooders would find something else to prohibit. There are those who want to ban sugar. Some want to ban meat and make us all vegetarians. This may sound like a joke, but these people are dead serious.
Think of your own life. What do you enjoy? Some hobby. Some indulgence. You can bet there is someone, somewhere who thinks it is bad and would love to ban it, whatever “it” is. Many people just can’t accept that people are imperfect and always will be. We will never perfect the state of mankind and shouldn’t try.