apprenticeships for locksmiths are very rare in the US.
Australia, encourages apprentice training through government sponsored programs, whereby the government apprenticeship commission will enable a locksmith company to be subsidized for training an apprentice, indentured to a 3 year minimum term.
When I did my apprenticeship (many years ago), my boss received 50% of my wages from the government program. An excellent way to subsidize employment opportunities for young people, especially when you consider that apprentice wages are deliberately low.
If the state government here had an apprenticeship program (of similar) I would gladly take on apprentice locksmiths, train them up, hold them to their indenture period with me and it would provide a viable program for getting people employed and off unemployment benefits.
(i'm in the mid-west)