IMO it has nothing to do with if a deer sniffs your copenhagen or not.
Chewing puts you at risk of health issues, fact. Should you care? Absolutely. My brother in law has chewed for 2 decades + and he's now found himself 7 years married, 6 year old and 4 year old daughters, 2 year old son and he's battling throat cancer that is much more dangerous than originally thought. Very real chance he'll die in the next 1-2 years and that people, is something that unless you're faced with it you cannot fathom.
Sure, you can chew a lifetime and it not hurt you. You can smoke a lifetime and it won't hurt you. You can do lines of coke and juggle chainsaws and you might never see anything of harm from doing either.
Why risk it for a bit of tobacco high? I mean really ...... are you guys that dumb and shallow?
I watched a good friend die 2 years back in the summer ........ he always said "you gotta die from something" .... after he knocked a girl up and had his first kid, he was diagnosed with cancer and died within2 years of being diagnosed.
He told me, maybe 6 months before he died, he wished he'd never started smoking. Funny how that macho little "you gotta die from something" evaporated [

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If you chew tobacco you are rolling the dice and those roll's affect your life and everyone's around you in your family and friends. As for me? When I die, it will not be from smoking or chewing or doing drugs etc ....... can you say the same thing if you chew/smoke ? No, you can't ......