Instead of being a true rival to FIAT, it became a thing with a toxic-as-hell commumity, fraud, and basically its nothing more than a high risk stock. The risk is NOT only "will this go up or down" but you have a high risk of being robbed, as have happened to millions of people.
Maybe there will be a better alternative in the future, but right now bitcoin is not it.
We put so much law and limitations about anything money purely because at times when we did not, stuff went wrong.
The whole idea of currency without any laws and limitations around it means any and every problem that those law were supposed (some do it better, some worse, some make actual problem worse, not trying to pretend they are perfect here) to help with will happen, easily, with the "new money".
The fact that on top of all the old problems the crypto invented a whole set of new problems is just a little turd cherry on top of a manure cake.
Okay, that was harsh, manure have some actual positive use