Exactly! Tobacco is a legal product for ADULTS. These players are adults. Besides being “icky”, nobody has ever gotten cancer from being around someone chewing tobacco. So it boils down to “we don’t like MLB players using tobacco because it’s “icky”. BTW, unless they want to lose their licenses, stores don’t sell any tobacco products to people under 18. And you have to show, gasp, a legal ID to purchase it.
These players are employees. MLB has every right to improve their image by eliminating this habit from the playing field.