To be honest, if he wants an apprenticeship, blasé is something he will need to get out of his system. Many good apprenticeships need commitment to find out about and then to apply to. He might get his first application but it's unlikely as the competition is likely to be fierce for the good opportunities.
However, I understand at his age they need a bit of focus to find their mojo, so help him to find the source of information and then try to encourage him with discussions at home, help to search, and visits to college to locate opportunities he'd like to apply for.
I know my DC s college had an apprenticeship department. It was different from their own subject department so they had to go and introduce themselves. They had local opportunities of different levels and did talks etc too.
The Government have a online website. Look at those in detail. He'll need to consider if he's happy to move away from home and then he can search a bigger area. Moving away he could either support himself the apprenticeship wage (some are better than others) or you could top up with help (depends on your circumstances)
Our theory was we had to help our daughter with £400 a month through her Uni years, so we offered the same (if needed) to help support the other through an apprenticeship (if needed).
Also look at individual company websites. Like BT, the Banks, Accountants etc depending on his interest. They often have information in the website careers section.
Depending on where you live and his area of interest there may be good opportunities locally. If you are rural with minimal public transport there may be fewer options without living away.