All stimulants such as alcohol, cigarettes and drugs should be banned.
All of those things have been proven harmful countless times. The small amount of entertainment or relief of stress is not worth sacrificing your health, life and happiness. They should be banned in order to protect the lives of everyone.
There are only two genders
There are 2 physical sexes, male and female. While sex is the physical representation of a binary gender, your own gender is something only you can know. The human brain is advanced enough to describe itself in so many ways, and all these ways are exactly as valid as one another.