>>150700184
I don't think they demand it, but it might be a valid strategy
In Germany for example, most relevant clubs have such a high ticket demand that your only realistic chance of getting a ticket is being a club member - since that means you get early access to buying tickets. Even then, you'll have to be quick. HSV for example has ~150,000 members for a 60,000 stadium. Once members have been given the opportunity to buy tickets, the remaining few tickets will be made public
It is the only way to have a shot at getting tickets reliably, and clubs get both membership fees and ticket prices that way, so they don't mind. I assume it's similar elsewhere