They tried that in the UK in the post-war era of building residential low-rises. Universally hated. People didn't want to only go where the walkways let them

They tried that in the UK in the post-war era of building residential low-rises. Universally hated. People didn't want to only go where the walkways let them go. Turns out we're lazy (https://www.theguardian.com/cities/2018/oct/02/walkways-in-the-sky-the-return-of-londons-forgotten-pedways https://www.theguardian.com/cities/2018/oct/02/walkways-in-t...). They are making a slight comeback but as more of a leisure thing I think - somewhere nice/novel to go for a stroll on a sunny day, rather than when doing your morning power-walk from the tube/bus station to your office etc (e.g. New York high line type thing)