Skoosh,
Possibly became a fairly well paid job - in the 1900's, but the particular relative I am thinking of in my tree, really had a hard time - huge family, living in the "Garngad" slum area of Glasgow, - dying age only 46 or so... think their life was a bad combination of occupational hazards, bad housing, health facilities, industrial pollution,..... Boy, oh boy - we are lucky eh?
Maggs