if it helps i served an apprecnticeship too. I did not have any degree, and i think for an electrciain's aprentice it is a waste of time, why, because unless he is intending on getting a pg degree (yes that is pg as in pg the Tea) he is wasting his time. why, when you start an aprenticeship, the money is not very good, and you start by making the tea, i am not joking, being an aprenyice you get to do the great things like making tea, sweeping up, marking cables holding this fetching that.
do not get me wrong i enjoyed doing it, but with a degree, will your son be able to cope with being "servant" (can't think of right word) a degree later on YES, now NO.
In return, you get to go to college, learn at college, go back to site and usually electrican gives you small jobs to do, then checks to see all is well (then you do sweeping up)
its a great job, but is your som also aware that it is hard graft, lifting bundles of conduit, being outside in the snow putting up outside lights. it is good, but it is not a cushy life, although it does have its moments.
this is just my opinion of how i got into the trade