Yep, pretty soon you'll be accepting seniors discounts and watching Lawrence Welk reruns...
Seriously, drugstore readers if/until distant vision goes. Went 12, maybe 15 years that way. Today I have one pair of progressives, but prefer bifocals.
For shop work I keep a few pairs of plain prescription single vision lenses with different focal lengths. For example, the pair with the Tig machine focus at about 12 inches, while others are more like 18 and 28. Just put on whatever fits the task at hand; don't care about distance vision in the shop. Single vision means I can look through any part of the lens, real handy in vehicle work.
The online prescription eyeglass sites regularly run specials like "One pair of prescription glasses only $6!" The hook is they are offering single vision only, while near and distant costs more. No problem for shop glasses. Pick large frames to protect your eyes.
If you want bifocals to wear while flying, measure the distance from eyeball to panel, and your eye doc can write the prescription for that distance. If you don't tell them, you'll get the standard.