A hacked database from AI companion site Muah.ai exposes peoples' particular kinks and fantasies they've asked their bot to engage in. It also shows many of them are trying to use the platform to generate child abuse material.
It probably stuck from the time when porn was becoming a bit more normal to watch, so it still had some nominal plot initially. Still gender roles with women being at home busy with washing machines and all such, or babysitting.
Could also be that those are the only porns with even a half assed attempt at a plot instead of just opening with a ground and pound
“I watch it for the plot, I wonder if they’ll ever get her unstuck”
It probably stuck from the time when porn was becoming a bit more normal to watch, so it still had some nominal plot initially. Still gender roles with women being at home busy with washing machines and all such, or babysitting.