The problem is, have you ever thought of new ideas for future use cases, such as receiving a salary in bitcoin at your workplace or maybe as a means of payment for public transportation?
It's part of its use case. There have been companies or freelance markets that do issue and pay their workers with bitcoin. That's not actually a new thing and it's just part of bitcoin as a use case.
You'll see those coffee shops that have QR codes if you want to pay them bitcoin. Honestly, IMO, we're just getting started and more merchants and stores are starting to become open to it as a payment and that is because they like the idea of owning bitcoin. They'll get paid by it and then they hold it as an investment.