People just like to have a good time. It`s like drinking alcohol and getting drunk. It is fine as long as there are laws like no driving while high then everything will be OK and lots of people will be happier.
Yes it is like drinking but most drug are horrible for your body and are more extreme. laws against them are in place so you wont ruin you vital organs and they were put there but the government to keep you safe and the people who are around you at the time your doing them safe