> It is very hypocritical for some politician to tell me what I can and what I can`t put into my body.

I don't quite get the hypocrisy angle. He's not making rules that apply to everybody but him.

I would guess legislation around what you can and can't put into your body is around the amount of harm and suffering caused ty you(& by you) after ingesting these substances.

Different people have varying vulnerability(changing throughout their lives) and more likely to seek escapism at certain points in their lives. Legislating against subtances stop them from being widely sold & readily available.

Seems pretty common sense to me.

(with allowances for existing(read normalised) special cases, namely: alcohol & tobacco) I can see tobacco being phased out completely in the next century.