Wheezer, you sound like me. There is 35 years spread between me and the two guys I hunt with. First time out hunting together they thought I was going to drop dead on them during a 8 mile hike/hunt but I made them promise not to gut me if I dropped over on them. Ya just can't come back from that one.
We do have a great time together and the other two keep taking me along so I suspect they don't mind an old wheezer geezer hunting with them. Especially since I can out shoot them both.