I hate that pets poop.

Perhaps they could afford to be less cartoonishly-shaped but honestly it makes sense they poop. Realistically, I don't think that poop would be viable as fertilizer (because they eat meat and have certain harmful parasites I think herbivores don't produce in their poop) but I like the inclusion if only just because irl they poop. Everybody poops. It's mostly played for laughs at times but it's also a fact of life. But the game's "toilet humor" doesn't really bother me that much. I do wish we had indoors grass pads or something for apartments or in general cause it's not always consistent where they do their business.

But I would turn to mods if you really can't stand it.