There are so many reasons it is impossible to explain them all within a few sentences or paragraphs.

You really do need to do your own research.

This is the best way because it educates you in almost every field of life: Maths, Electronics, Computers, the Internet, Economics, Politics, Phycology, Philosophy, Game Theory etc...

If you don't want other people making your life decisions for you, then these are required skills.

If you want to sit back and let others choose your fate, then don't bother.

The second option rarely works well.

The entry point for most people is its increasing price, the journey creates self sovereignty.