Twitch Updated their Sexual Content Policy:
- Changes: Certain content now allowed with labels
- Artistic Nudity: Permitted under Sexual Themes Label
- Game Nudity: Contextual; labels necessary
- Body Painting: Acceptable with appropriate label
- Mature Games: Label generally covers content
- Stream Visibility: Impacted by content labels
Twerking, grinding and pole dancing are now allowed without a label.
Here’s a study showing the opposite, and linking to many others as well.
In other words, it’s far from ‘universally accepted’
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6088458/