Of course it’ll be awhile before anything like that, this is just one engineering problem solved. But self driving within a confined space like a parking lot (especially a parking lot that doesn’t normally allow humans) is a lot easier to solve than the general case. I think you’d see adoption happen first with fleets of cars or buses, before it would become common place for just regular stuff.

Physical connections are really rough, they require millimeter precision, Tesla has been trying to do this for ages