Pitcher plants don't need a tropical environment! There are many that are even from Canada. Ours is doing great in an indoor Seattle environment just sitting on a windowsill that only gets an hour or two of direct sun per day.
Tropical pitcher plants (Nepenthes) do make decent houseplants, although they struggle through the dry indoor Canadian winters here. They do seem to capture a lot of the fungus gnats I've been fighting with lately (I can see dozens and dozens in each pitcher), but not nearly enough to make a noticeable difference.
So yeah, they absolutely grow wild but aren't an extremely prolific plant, best places to see them are usually near bogs and ponds.
I put the VFT outside once for it to snack and it ate a slug. Would have loved to see the look on the slugs face when the plant bit back.
Mine even survive on tap water which goes against advice, but I guess Scotlands tap water is different from most places. Just keep them in an inch of water the whole time, easiest plants ever.