Buying and selling with a bank card:
Through a cryptocurrency exchange
Through an exchange office
Through P2P
Through payment systems
Buying and selling for cash:
By courier
In the office
Through the terminal
Through money transfer systems
Besides, online casinos like Golden Star
https://50-spins.com/review/golden-star-casino/ also is using Bitcoin for deposits.
If one-day cryptocurrencies are accepted as a full-fledged means of payment, intermediaries-cashers will disappear from the chain, and the entire transfer will cost cents or a couple of dollars, and, most likely, traditional methods will have to make a lot of room.