My computer gives me notification pop-ups but it doesn’t do it when I’m sharing my screen because context matters.

Some things are easy to standardise. But walking into a wall, or a lamp post, or into the road or a parked car, or barging into someone else, or going a long way around because there’s a big group of them mostly on the side you’ve decided to robotically choose, or any number of other complications, really aren’t worth it for the almost non-existent computational expense involved in choosing the best path forwards, like we all do all the time almost every single day of our lives.