He's been applying mainly in the Nottingham, Derby, Leicester triangle - only had 2 interviews in the year (and I know he's well into the 3 figures in applications)
I know that he struggles with interviewing (in the spectrum so self confidence isn't in abundance) so maybe that's the reason for the unsuccessful interviews but unless people give him the opportunity to be interviewed they'll nver get to know the sort of person he is. I know there's no reason whatsoever for "special treatment" - it's just a shame that he's spent all the time he has for what could turn out to be no chance of working in his field
I know the feeling. I graduated with a degree in Computing just after the dotcom bubble burst and it took a couple of years before I managed to find a job.
Having recently sat on the other side of the recruitment desk, it can be hard to get your foot in the door. We had dozens of applicants for a single post. We could filter out quite a few quickly for obviously not meeting the criteria or not following instructions. (It says a covering letter and a CV, don't have both then get in the bin). But it was still hard to narrow down to a small enough group to interview.
Experience does tend to trump qualifications, which isn't helpful for your son starting out. I don't know if he's already tried looking for more general IT support roles that may be amenable to taking on a newbie? Once you're in an organisation there's often more scope to move up or across. I have a colleague who started on the helpdesk but has worked on his professional certifications and moved into a technical team within a couple of years and is now looking to further specialise.
Trying to go back on topic, one thing that surprised me was the number of applications from those without the right to work in the UK. It does feel like the balance hasn’t been right in terms of improving productivity and getting UK citizens into work versus importing labour.