It could be that the industry is off-putting to certain groups of people. You're certainly right that this is a possibility. However, it could also be that some

It could be that the industry is off-putting to certain groups of people. You're certainly right that this is a possibility. However, it could also be that some people actually just aren't all that interested in certain careers. A holistic point of view on this topic would take into account all factors rather than fixating on just one.