That's what I propose to do: the relation can be created usually already existing and mapped trails, but they are displayed and can be easily downloaded at waymarkedtrails.org and similar open data sites and i want to create relations for the standard routes to some popular hills, because from the map alone, sometimes it's difficult to guess, what i a well trodden standard route on a peak, and what is a "goat trail" not to be recommended.
Sometimes we have these problems in the Alps where trails are mapped in OSM and not in the national topographic maps as they seem okay in the beginning and and in a dangerous rockky are or need climbing.
Thanks for your interest Martin