You don’t get to be a billionaire without some malfeasance.

And even if you don’t assume actively malicious intent like you should with Musk, there’s a lot of potential danger with technology like this, and if you don’t stand a lot to gain, and have reasonable controls against things going wrong, it’s probably not a good idea to be an early adopter. It’s just like a pacemaker, there are a narrow segment of people who should want to test a new model/concept for them.