Well, not the same, of course! Just a similar set of tracks!

[Emmet just grins! No offense taken, it seems.]

It doesn't hurt them! In fact, a lot of times it's very safe for them. Most fire type Pokémon don't do well in rain, for example, and most trainers do go traveling around for quite a bit! It also is helpful in the event of carrying around six large passengers! And competitively, it is always good to not reveal your hand until you play it!