So I noticed sims auto woohoo in elevators, photo booths and beds but they don't seem to do it in showers or leaf piles even when I remove all the beds off the lots just to see. I have privacy off and all valid locations set to true. So is that normal? I tried looking up to see if sims are only able to do it there through command but I'm unsure?

Sims will auto woohoo in showers from my own experience sims will generally pick the most convenient place or sometimes the closest place to woohoo so if you have a large bathroom with a shower they will probably pick that a little often.
I don't know about leaf piles but I know sims will auto woohoo with an igloo

My experience has been that sims need to know each other really well to autonomously woohoo in a shower. You also need to have Generations installed, or showers are not a valid woohoo location.

Probably of no use here if you can get them to woohoo in the shower by command, but thought those might be worth mentioning anyway.

Okay! I just wanted to make sure it wasn't buggy on my end. I do have generations but I guess the sims need to get to know each other longer maybe. Hmmm. We shall see. Thank you both!