There was a study which showed a lot of dopamine release, along with 5 other "happy" neurotransmitters or similar, when people wear VR goggles. This is a lot more mental stimulation than from basically any other piece of tech. So Meta and others are not trying to make it convenient for us to be efficient - e.g. checking emails on the bus with these glasses, they are trying to get us hooked on their tech.
That's how I see it.