I agree with all of this, and the regular crypto person might, and I'm going to add onto one of your statements. Bitcoin DOES help you receive money faster, but there are other coins that help you receive it faster than bitcoin does now.
I believe if bitcoin wasn't the most used, it would be non-existent. I feel the only reason it's still alive is because people have to use it to purchase goods. An example would be going to a market in New York and buying things with bitcoin instead of altcoins, because they don't accept them.