But gathering Psilocybe spp. in the wild can be iffy. You're generally OK if they turn blue soon after bruising. Also, ones growing on cow shit don't taste very good :(
Growing from spores isn't that hard. We used to grow them on cooked rice, in mason jars. You put rice and water in the jars, put the lids on with the seal upward (so they don't seal) and cook ~30 minutes in a pressure canner. After they cool, just inoculate with decent sterile technique, put lids on loosely, and keep warm in the dark.
In a week or two, you have shrooms. And they taste great! We used to freeze dry them. But you can also preserve in honey. Cultures produce shrooms for a week or two, and then gradually crap out.
Stop believing the stuff you read online. If they are hallucinating, it's from the pesticides or the methylmercury coating the seeds as a fungicide combined with a heavy dose of placebo.
Walmart sells packets of ~60 morning glory seeds, it only takes a few hundred to have a pretty good high with visuals and everything. (use a coffee grinder because they’re hard enough to break your teeth and unlike LSD they will make you very nauseous) No one will stop you from buying these. Also, Mushrooms grow in the wild and it’s not super hard to find growing kits, although I’ve never tried that.
What makes LSD nice is that it’s safer than these and has fewer side affects. So this isn’t about giving everyone access to psychedelic drugs because they already have that, it’s really about helping them stay safe.