> People are responsible for their choices
Yes, but also often are not actively in control of them.
People are also in control of whether or not they gamble their last dollar instead of buying some food, or whether or not they put that needle into their veins.
History has shown human nature can be dangerously out of control and people will happily destroy their own lives given the opportunity.
Therefore society tries to protect those vulnerable people with legislation.
So when does it stop? Would you support the state intervening in other situations in which people make choices of which you disapprove? Which choices would you, in your magnanimity, allow them to make?