I don't let people damage my tools, personally. Probably too much so. I could probably stand to let things wear out faster and replace them. Personal use of tools is different than professional use.
Depression era grandparents, parents born in 1940.
Used 3" firehose works great as bar sleeves, if you can find it. Easy to put a clip-in loop so they don't get lost so easily.
I like having bar sleeves on my bars for an additional reason. If there is a bar sleeve left empty at the end of the job, its easy for employees to see that they left a saw somewhere (unfortunately, not in the one staging area).
Maybe a cost comparison of new handle bar replacement versus used firehose. Maybe an easier system for storing sleeves, so that they are easier to use.
I can much more ergonomically grab two saws "married" together in one hand that carry them seperate in one hand.