I have a couple of Subaru Outback’s (love them) that have the lane assist. Normally I like it, but is sure can be picky about what it sees as the Middle of the lane, and the beeping gets annoying on very windy roads.
Also, when there’s snow I will always turn it off. That’s not because it can’t see the lane lines, as it will not try to “assist” if it cannot see the edges of the lane and there are are indicators that let you know if it can or not.
The problem I that snow on the road can make patterns that appear to be lane edges, and they can shift across the road randomly.
One time I had the car jerk the wheel to the side trying to keep in the “lane”, and that is obviously not optimal is snowy slippery roads. So it always get turned off when there’s snow on the road.
This is one of the reason I just don’t see self driving cars as inevitable. Just too many situations like that where a computer will make the wrong decision. I’m just not convinced that we can program a computer to recognize false or misleading information, that we humans know instinctively.
So perhaps I’ll be proven wrong, but I’m just not convinced that it can be done consistently and reliability for anything other than predicable roads and conditions.
On long distance driving, I appreciate the warnings feature when there's a car next to you, with an increased warning when the turn indicator is on.