As someone who does indulge in these unhealthy substances (though I am trying to go t-total now, wasn't exactly addicted per say, but it was very much the socially habitual norm), it's just simply the thrill of changing your mindframe through artificial means.
It's also a social booster too, picture the situations, such as the chats in the smoking areas outside of bars away from the loud noise, or the alcohol to loosen you up to go and talk to that girl you'd be too scared to talk to normally, and stop any social awkwardness from holding you back.
As for marijuana, personally it is (well was) just a relaxant after a long work week on a weekend with a few friends and some colourful films.
In other words, it's all situational. There's that thought in the back of a lot of people's heads that intoxicating substances are needed for a good time, but they're not needed. They're more of an icebreaker really.
It's also a social booster too, picture the situations, such as the chats in the smoking areas outside of bars away from the loud noise, or the alcohol to loosen you up to go and talk to that girl you'd be too scared to talk to normally, and stop any social awkwardness from holding you back.
As for marijuana, personally it is (well was) just a relaxant after a long work week on a weekend with a few friends and some colourful films.
In other words, it's all situational. There's that thought in the back of a lot of people's heads that intoxicating substances are needed for a good time, but they're not needed. They're more of an icebreaker really.