Yes, but it is much easier to do them responsibly if you have other rewarding activities to look forward to.

I, for example, spent almost six months high a couple of years ago and loved it. I stopped because the hippies I was working for ran out of money. I was about an inch away from homelessness before I managed to get a job as a software developer. I was sober at work, but I'd get fucked up as soon as I got home, later with friends, &c. Now that I'm working on my own startup my drug usage has declined even more. I still get high when I have the chance, but I have other highly stimulating activities to spend my time on now.

I wouldn't recommend my life choices to anyone else, but there are ways to responsibly partake of excess.

It's not just about dealing with stress. Some drugs offer transcendence, others escape, some enhanced creativity, or the potential to learn more about yourself or the world around you, or a greater bonding with people you love, or greater tolerance, understanding, and empathy, yet others are self-destructive.

A lot depends on who the user is, what assumptions, pre-conceptions, and goals they have, how and where they use the drug, and which drug it is.

Sure, some may use a drug for stress relief or to party, but others use them to expand their mind.

Unfortunately, escapist, ignorant, and self-destructive uses are all too common in modern societies. It doesn't have to be that way.

Sure, but that's sort of the point. They are attractive but if you have access to something better then you'd rather be doing that.

Edited for clarity