>>47560462Because not every Pokemon will be rideable so Following Pokemon is a better catch-all term. Besides, idk why you think someone wouldn't get bored of riding just as easily as the walk/run cycle.
I like when you can fly in the overworld as in ORAS and LGPE but it's a busted mechanic to have as a staple, and keeping it to late game is bittersweet until they ramp up their postgames again.