Having grown up on a ranch in the back country of the high Rockies from the 40's, I was probably pushing my teens before I ever chewed store bought gum (Black Jack, Beemans, Clove). My family had chewed Pinyon Pine pitch (and gathered pine nuts) from the trees on our property and surrounding mountains for generations.
The best comes from natural wounds on the trees. Gramps always told us kids the extra flavor of the very best came from the porky damage where they peed on the tree while stripping the bark. Small to medium drops or globs that are fully hardened and clear make the best chew, are the least bitter and easiest to get transformed to gum. They turn to ultra fine powder when bitten that mixes faster with your saliva and tends to reduce the almost uncontrollable urge to spit, which just wastes the best flavors and fine texture of the finished product. When we'd get tired of chewing we'd save the wad to make for an easier restart later by adding a few more pieces to increase the bulk, elasticity and bring back a stronger flavor. Makes my jaws ache just thinking about it. :grin:
I still gather a stash whenever I get in country where the pinyon's grow, and share it with my aging parents who can no longer go out and collect their own. It will keep forever in an open container in the cupboard. Sadly I never could get my son weaned to it, neither could my sister with her kids. So I guess since the rest of the family is gone now this family tradition dies with us.