During my childhood in Northern Ireland - this was in the seventies, not that long ago:) - I vividly recall my grandmother frogging worn-out feet (toes, heels, whatever) on pairs of socks, carefully protecting the still-good legs - always the prettiest, most decorative part - and simply picking up the appropriate number of stitches and re-knitting the foot.
Discarding an article of clothing that could so easily be mended was unthinkable to her:knitting:
Of course, she was of a generation that considered knitting and sewing practical skills and buying what could made at home “extravagant foolishness”!
Sorry, digressing. My point is that not only is it “doable”, it’s practical and relatively easy (just pay attention). And in the end, the holey socks were a lost cause anyway; why not give “repairing” them a shot?