It’s always easy to register a new domain name. Registrars are always very eager to accept new domain registrations. Obviously…
Most online and other services with recurrent fees are well organized to sell their service, but are very silent about how to cancel. Think about banking services, investment accounts, telecom providers, web hosting, and yes also domain names. I would think that this is one of the topics where law and government should impose certain rules and obligations.
However transferring a domain name from one registrar to another registrar is another story.