Cats Stopped Eating Their Wet Food… AGAIN

I have two cats under 2 years old, who generally have good appetites.

They’ve suddenly stopped eating their wet food. This is now the third time they have decided they simply won’t eat their wet food. They just abruptly stop eating it.

I bought another new wet food to try, and they won’t even go near it.

Is this normal behavior?

Do they even need wet food?

Is dry food enough?

I want make sure they’re eating enough and getting what they need… but I don’t wanna spend a fortune trying to guess at what they’ll eat in the meantime.

Thoughts? Suggestions?