Theirs obviously a reason he got let go, im not saying he wasnt a model student or anything, but its unusual he was let go, if he finished his first year, he has that under his belt and should be checking fas and the evening herald etc daily, their is always apprenticeships offered to someone on there 2nd year or more then those starting a fresh.
i wish him all the best for the future and commemorate you for seeking advice for your son, i just wish i had that support when i was young
peace