I use it via osm directly when available. Others will likely start to develop apps that use such data. Once enough people bother to provide it.

There are many many apps developed specifically to aid disabled people. But as the people using those apps are often the least able to gather the data. It is down to people with more mobility to provide data before it can practically be used by developers.

I do my best when in an area and my vision is more available. Although its always pretty crap. At the better times I can at least tell the surface.

Unfortunately OS data is one of those things. You need the horse before the cart. So it requires people to understand potential uses rather then actual use at the time.

As the idea of the data is to be available to less resourced developers. As well as OS ideals in genral. It is unreasonable to only expect data to be of value if you see a value today.

PS I am in no way suggesting you are wrong for how you choose to use your time. It is yours and its value can onlybe judged by yourself.

I am just trying to point out that the data you see little value in. Can be important to others. Either now for those with some technical inclination. Or in the future if gathered by those willing to consider it.

I don’t take the effort to map surface quality because it is not used for anything.

Just so you know. It can be invaluable to disabled people trying to get around.

Myself. With visual impairment. Where my vision can change drematically from day to day.

Knowing the surface quality can let me know if a route can be done with just a cane. Or if on a bad day I am better off just going a longer route. Or waiting till a better day.

Please remember what seems unimportant to you. Can be absolutely essential to others less able to answer the questions then yourself.