Is paper map reading becoming a lost skill?
Ditto. I began my professional life as a US Air Force navigator, instructor, and eventually a senior navigator flight check officer. Those were back in the traditional skill dinosaur days before anyone even knew how to spell "GPS". Map study (charts, really) was how I lived. As a civilian my accomplished pleasures center around wilderness backcountry off trail navigation. The thought processes of land navigation are not all that different from air navigation. I have trained wilderness guides in serious land navigation techniques and I am a state Search and Rescue certified crew boss and instructor. The state Division of Homeland Security hired me as a Subject Matter Expert to train law enforcement and other related professionals in land navigation. I have accumulated in excess of ~400 USGS topo maps including most of my State and a few of adjoining and disjoint areas as well.They are a part of who I am.
An old wilderness guide once advised me to always carry three compasses. One as my primary, another as a backup, and a third to give to some poor soul I come across who has lost or broken theirs. I have twice given away one of those. Usually I carry only one map in my favorite heavy duty map case (never trusting it just in a ziploc bag), only sometimes also a spare map for redundancy on important most remote trips. I have given one of those away as well.One to use and the other two as backups in separate packs.
I also carry three compasses distributed among packs. Also knives and Bic lighters (used to be waterproof matches.) I was taught to keep enough supplies in each pack to live on in case you lose some.An old wilderness guide once advised me to always carry three compasses. One as my primary, another as a backup, and a third to give to some poor soul I come across who has lost or broken theirs. I have twice given away one of those.
I find compasses useful for lake crossings. With a bearing, I can paddle straight across to the next portage. Also came across one long portage that had been logged. Used the compass there, too.I still use a map, I don't own a GPS. I carry a compass but have never used it while canoeing iirc. I have always sort of kept my bearings with the map, keeping an eye out for certain landmarks to confirm my location.
If I was bushwacking the compass would be necessary, but as a canoe tripper I have never had to, just following portage trails.