It (as in the advert) doesn't, I do as a general comment.
A student goes to university at great personal and national cost, completes a degree which isn't specific to a profession such as teaching, medicine etc. Leaves university with a huge debt, then goes into a role which doesn't require a degree such a train driving.
I very much doubt a degree will see the candidate through the train driver assessments, it may make them more attractive at the application stage, it may also assist them in their initial training.
I personal wouldn't go to the expense of university, then end up in a role that didn't require my degree, Id rather study for a degree which is a requirement of my chosen career path.
A lot of careers now require or have a degree as a desirable requirement for employment as employers rightly or wrongly assume that a graduate is better suited to the role they are employing for.
Train driving is an acquired skill, the initial learning curve is steep and rightly so. However over years of hands on experience the role becomes easier, no less attention and concentration is required but the actual task of driving becomes easier through experience.
You don't need a degree to drive a train.
I had the option to go on to university many years ago, however I chose to enter into a trade which gave me a skill. I came out of that training program with my chosen skill and zero debt I'm pleased to say. Many of my friends who chose the university route, left study with huge debt, yes with the degree but so did 1000s of others. Over half of them are now unemployed or employed in roles which don't require a degree, or are in totally unrelated fields to what the degree is in.
NX