Being in an environment or situation where that can be a problem is still not preferred. It may not be an overdose, but the outcome of drug use by their friend doesn’t seem positive.
Agreed. You can have good trips and bad trips. It is highly dependent on environment and state of mind.
The only guarantee is that your ability to change increases due to increased neuroplasticity. Whether the change is good or bad is ultimately up to you, which is why I think if these drugs were to be legalized that the intake should happen in conjunction with in-person therapy in a controlled environment and not at all something you'd just pickup at a pharmacy and take on your own like anti-depressants are today.