1st Gen The Daycare

There was Day Care in Generation I (and their remakes) that would raise a single Pokémon for you to gain levels while you walk around the Kanto region. It is not, however, in Generation II and those remakes, either. It only exists in Gen I's rendition of Kanto.

Did you make use of the Kanto daycare? I've never personally done so, especially in the remakes. I just honestly did not care for the feature.

I have sent some Pokemon to the Kanto daycare.

I used it a couple times during my first time playing Red, but as soon as one of my moves was replaced, I just stopped using it.

At least w/ Gen 2's egg system, I'd see myself having a reason to use it, but not so much Gen 1.

Sparingly, usually I send a pokemon that I fancy myself using at some point, but feel like my team can't support at this time. Perhaps it is underlevelled or won't know any useful moves for awhile, or there are a lot of battles that are not good type matchups for it coming up, yet I don't want this pokemon to fall behind. So in a situation like this I might place the pokemon in daycare, instead of the usual PC storage until the moment where I can fully utilize this pokemon. Daycare is pretty much PC storage with levels. I try to be watchful of pokemon left in daycare since the daycare man deletes pokemon moves when they learn something new, and you can't relearn moves in Gen 1. I scurry back before it reaches a level high enough for him to delete anything useful, or leave a Pokemon that doesn't know moves I will miss.

Daycare isn't very good in Gen 1, but if you time it right it can at least be some extra levels gained while you were walking around the overworld anyway.

I didn't like the limitations of Gen I's day care center since we could only leave one Pokemon. I did use it once or twice in Red version, but I mainly trained my own Pokemon during most other situations.