First off, I really disdain the general term "drugs". It's easy to deduce that one who has used "drugs" is a drug user. But what does that truly mean, that you're not in a complete and perpetual sober state of consciousness? I would say I smoke weed, use MDMA occasionally, drink alcohol, and take psychedelics once in a blue moon. The general term drugs is too broad for me to comprehend my own use.
However, I digress. The reason I use "drugs" is the same reason I like to travel, make new friends, etc... I love new experiences. The reason I still use them? I have found their advantages to outweigh their disadvantages. I have many outlets, and some of those happen to be using drugs. Crack open a beer, smoke a J, as long as you can control it I see no reason not to.