Imagine you need to pay someone say $2000 that painted your house or performed another service.

And you wanted to pay them in BTC

And they heard of BTC and have no problem with the concept but never used it before

When you realize what you have to do - the explaining, the convincing, the handhold, how much time it takes you get them onboard and how much time it takes them to go through the process and have it converted to fiat in there hands...