As Dave pointed out, apprentices are usually kept fully employed. There are several reasons for this beyond the cheap labor aspect of it.

Keep in mind that you'll probably be starting out at 40% of scale, so this might be a pay cut in the short term.

There is a projected (or actual) shortage of electricians (about 50,000) so now would probably be a good time to get into the trade, you should keep busy as the more chronologically gifted of us retire.

Tom

Few things are harder to put up with than the annoyance of a good example.