I just got an idea that I personally think would make CS a bit more popular,
I think that you should be able to go on adventures with your pet, some could take up to 5 days to complete, others 6 hours. There could be crossroads and things like- "Uh oh, your pet has stumbled across a bear cave!" Option one- Run away loudly, option 2, go inside, option 3, slowly walk away. And you could only have 2 pets on an adventure at once.
I also think that if a pet gets injured you'd have to wait a day to be able to use it again, and maybe during the adventures, something like this could pop up- "Your pet has stumbled across a wild- (Animal) ignore it or become friends with it? If you choose to be friends with it you could pay 15 C$ to keep it, there could be like a 0.3 chance of it to be an OMGSR, 3.2 percent to be a VR, etc etc. But you wouldn't know what it looks like, then if you buy it there could be a screen saying- "Congratulations on your new pet!" And what the pet is. Maybe some cool new items could be added in as well.
There could be different adventures to do, examples- The wild wild west, the sticky swamp, the candy quest, the firefly forest, etc.
Also, the pets/items you get could resemble the quest, if you get a pet in the firefly forest, it would be likely to be a pet with stars/fireflies on it, if you're in the candy quest, you'd be more likely to get a candy-ish looking pet. Maybe you could get points depending on how good you did in the adventure, and with the points, you could save up to get a mystery box with a unique pet/item in it!
I personally love this idea, if I get enough people to agree with me I'll attempt to get Tess to maybe add it in game or think about it.