When I was younger, I was what you would call a "pot head." Yes, I smoked nightly, daily, while home and out places. That stopped quite a few years ago, when my partner got fed up with it and told me that she'd leave me if I didn't stop getting stoned.
I do not smoke anymore, but I would smoke occasionally if I was able. The people these days lace all of the marijuana with cocaine and other heavy drugs, so it isn't pure anymore. If I had a child who wanted to try it, I would have to have it with them - I would not allow them to try it on their own, because I don't feel that it's safe.
But regardless, I have, and would in the future if the occasion arose. Generally speaking, though, it's not something that I do frequently anymore or even at all really. Those days are far long gone.