Yeah, but aren't the halflings supposed to have some sort of mount they're bound to? One of the feats in the players guide (Talenta Dinosaur Bond) seems to be talking about this, but it doesn't talk about how you get the mount. If your mount dies you can use it on another one within 7 days.
Does the tricks system apply to normal animals?
I thought that was just for rangers/druids?
I agree, of course, that having a Fastieth in the dungeon (and functioning effectively) seems improbable given how the creature is described. A clawfoot is more reasonable in story terms.
Obviously it works great for a ranger or druid to have as an animal companion. But I guess I don't see the majority of halflings roaming the plains as having levels in those classes (and you'd need a few in ranger to get a clawfoot).