I have a Garmin Inreach that I’ve started carrying with me more often. I carry it both for others and in case something crazy happens. That’s also why I typically carry extra water. I have never needed it so you could say it’s a waste, but someday I may save somebody’s life because I will be able to get immediate help if it’s needed.

You also don’t need any of the gear you mentioned, but it sure makes the walk more enjoyable :)