Biden is an entitled protected POS who is used to doing whatever he wants without consequence. So he tries to cop a feel in front of the world, who’s going to stop or even call him on it.
That’s it exactly. No one calls him out nor intervenes so he figures he’s entitled to do it Jeff Sessions (who blocked Creepy’s pass on his grandaughter) and an unnamed Secret Service agent (who’s date the Groper got handsy with) are the only two people I know of who would have none of it.