What a Luddite! If everyone abided by that edict, PCs would have never caught on and digital handheld devices would never have come to exist.
"Specialization" is one of the key benefits of civilization, because it not only allows for a greater diversity of skill sets to be developed but also allows for all us all to benefit from the skills of others.

A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyse a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
Robert A Heinlein
Civilization? Do you see "civilization" somewhere?