[crote]

What's wrong with it?

If you rent a home, you pay monthly despite the contact lasting a year or longer. If are employed you probably get paid monthly, even with a fixed contract duration of 6 months or a year.

Auto-renewing yearly contracts, on the other hand, are definitely a dark pattern. Luckily many places are outlawing it, so as an alternative a 12-month contract will often automatically convert to a monthly one at the end.