The one "driving aid" that I find actually useful is the following distance maintenance cruise control. I set that to the maximum distance it can reliably handle and it removes that "dimension" of driving problem from needing my constant attention - giving me back that attention to focus on other things (also driving / safety related.) "Dumb" cruise control works similarly when there's no traffic around at all, but having the following distance control makes it useful in traffic. Both kinds of cruise control have certain situations that you need to be aware of and ready to take control back at a moment's notice - preferably anticipating the situation and disengaging cruise control before it has a problem - but those exceptions are pretty rare / easily handled in practice.
Things like lane keeping seem to be more trouble than they're worth, to me in the situations I drive in.
Not "AI" but a driving tech that does help a lot is parking cameras. Having those additional perspectives from the camera(s) at different points on the vehicle is a big benefit during close-space maneuvers. Not too surprising that "AI" with access to those tools does better than normal drivers without.
The rental cars I have driven with lane keeper functions have all been too aggressive / easily fooled by visual anomalies on the road for me to feel like I'm getting any help. My wife comments on how jerky the car is driving when we have those systems. I don't feel like it's dangerous, and if I were falling asleep or something it could be helpful, but in 40+ years of driving I've had "falling asleep at the wheel" problems maybe 3 times - not something I need constant help for.