Kink, I've been working myself out of the trees for a few years now. I turned 60 this summer and mortality seems to get closer as each year passes.
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I have no problems climbing or feeling safe in a tree stand. I have hunter for over 30 years and 99% was from trees. In the last few years I have spent more time on the ground or at least concentrated more on hunting going to of from my tree stand.
We do this because we love it! I believe you have to be able to change when change is needed. I'm looking forward to many more years in the woods, even if I have to bring my off road wheelchair along!