Do I need lessons to play tennis?

My husband and I are trying to pick up a sport, the only one that interests the two of us and it's affordable (without lessons) seems to be tennis

We def can't afford classes, it's not an option, I took some tennis lessons when I was a teen many many many years ago and I don't think I remember anything. We also don't have friends who are into tennis or any sport.

We don't want to play at a competitive level, just have some fun playing matches against each other and maybe be more fit.

Are classes necessary and should we pick a different sport?

Edit/Updateish:

-First of all thank you all very much for being helpful and nice, I am glad there's such a supportive and not mean community around this sport :D

-For the people recommending pickleball instead, I will consider but it doesn't seem like it will make us any more fit than what we already are

-I think there's enough people saying it's gonna be kinda okay to at least give it a try, there's still a lot of people that say it will be boring without being decent so I don't know how it will actually go