I smoked pretty much every day I could from around the age of 20 to 32, and I can realistically look back and note the downsides. I eventually weened myself off of it because a.) I was spending an ever-increasing amount of money on weed and b.) I got tired of chasing The Weed Man around, getting ripped off, playing telephone tag, and driving all over God's green earth to nervously wait in a parking lot for an indeterminate amount of time (AND STILL GET SHORTED). While it was definitely nice for taking the edge off, it definitely made me lethargic and lean harder into my pretty bad habit of procrastination. While it's true you can't get truly "addicted" to weed in the textbook sense, smoking changes your brain chemistry over time and it fucks with your dopamine receptors. It's the same way people get addicted to food and end up as a 500lb deathfat, they enjoy how it makes them feel. I remember many a night scraping resin out of pipes and bowl pieces in a cold sweat waiting for the buzz of a text message. The longer I waited, the more irritated I'd become. It also kind of goes without saying that smoking anything isn't great for your lungs, period.