Come on, people

So I have an iPad and an iPhone. Both are running the most recent version of iOS / iPadOS. The phone is a few feet away from me, on charge, and has lots of signal. They are signed in to the same Apple ID. I am in a hotel in a major city in a first-world country. This is not some weird left-field scenario.

Using the iPhone as a hotspot for the iPad works ... mostly. Like, quite often you have to reboot one or both of them. It almost never works for long enough to watch a movie. Often you have to repeatedly try to connect. Connecting takes a really long time.

You know what the explanation for this is? It is that programmers (I am a programmer) are too stupid to get this right and too lazy and stupid either to test it or fix the very obvious long-standing problems with it.

Come on, people.