I'm 39. And I don't have a regular enough history of use to really make a judgement as far as how the trips themselves are. After about 23-24 I walked away from psychs due to by burgeoning alcoholism. There was a solid 15 years where I did zero psychedelic drugs and instead, traded several addictions back and forth for a decade or so. I've only picked back up with DMT and mushrooms in the last two years. What I can say for sure is this: Back in my early 20s, tripping was a social experience. Or at least it was always intended to be. Neither myself, nor my friends took anything more than "recreational" doses and always in small groups. Now, I don't desire that at all. I take large doses and seek inner worlds; alone and mostly in a dark room with music. The deeper the better. I can't say whether or not it's age related or something else, but that's the type of experience I want these days, so that's what I do. Sorry that I can't share any further insight.