Kirby is one of my favorite IPs of all time. Such amazing, happy games even if they're on the simple side of things. Everyone's life would improve if they took the time to partake in some Kirby.
I believe the answer to this is Kirby has a contractual agreement with Nintendo that, despite being easy games, Kirby must pretend to die when he reaches the edge of a pit to fulfill his contract for the game to have a potential failure state. It's supposed to be one of the qualities of a video game, after all.
An immortal, omnipotent blob that can effortlessly defeat any other creature from this or any other universe must pretend! It's kind of admirable in a way. Kirby is pretending to be a mortal so people like us can attempt to understand and guide him.

>>7295
Because the player forgot to press A

>>7298
>they're on the simple side of things.
It's an odd situation where there's a lot of mechanical depth with the absorption powers and a lot of effort goes into the level design on an aesthetic level but the challenges are generally very basic. It's a neat way to keep the games easy enough for small children while still giving enough toys to play with to keep an older audience engaged.

>>7304
>challenges are generally very basic
Most of the challenge in Kirby games, at least the more modern ones, comes from the true arena boss rush at the end of the game. They're all genuinely challenging and arguably the main appeal of the games for more experienced players.
The main game is usually great too but it's more about spectacle and getting familiar with the different powers and mechanics.

There's some personal challenge stuff you can do, too, like winning using only specific powerups or stuff like that. I never really cared for that, but it's something people do. To me Kirby games are a thing I do to relax and just enjoy the music and cute atmosphere. It's like a Slice of Life anime in video game form.
It often includes a lot of minigames, too, which can be strangely good for being minigames.

A Kirby thread? On kissu? I must be dreaming!

But the reason why Kirby doesn't just fly out of the endless pits, is because he's too focused on what he's going to eat that day, and which friends he should invite to eat together! He zones out thinking about that, and only realizes what happened when he's already splattered on the floor

That, and he's too lazy to fly all the way back up