Look… we all know the first and certainly most frequent prompts as soon as this tech is available will be porn.

“Harry Potter but it’s college and erotic”

“Here’s some photos of me in my 20’s, make an adventure where I become a sex god”

Seriously, fan fiction will be the best prompts and inputs to these devices, and people will spend their days wanking to their favorite IP’s with themselves inserted into the scenes.

…and then VR suits will be a thing and people will live in them.