Less qualified?
"In terms of qualifications, the older IT crowd is less likely to have higher education qualifications – 64 percent versus 84 percent among those aged 16 to 49. And nine percent are likely to have an IT degree compared to 12 percent among the more youthful grouping."
When I started, < 3% of school leavers went to university, and there was no such thing as an "IT degree". Nor was there any such thing as "computer science"; it was called "computing" and was regarded as a craft and not as a science. I don't know that the change in terminology has changed reality in any way.
The results of the survey are not surprising.