In my experience, people who use amphetamines (and cocaine) regularly start making very bad decisions, and heavy use leads to amphetamine psychosis. A very pub

In my experience, people who use amphetamines (and cocaine) regularly start making very bad decisions, and heavy use leads to amphetamine psychosis. A very public example of this was the behavior of the SBF / FTX / Alameda operation, where by several accounts regular amphetamine use was the norm. That doesn't mean it should be illegal, but I'd avoid associating with anyone I knew had an amphetamine or cocaine dependency.