To be fair to Kirsty , that was only a small part of the article.
A lot of it was about the pain of losing her mother last January, and about how things surrounding the aftermath of a death could be done differently.
She didn't advise girls not to go to university. She just suggested, because of declining fertility after the age of 35, it might be better to have children first and then concentrate on a career and/or education.
She had seen a lot of her friends suffering heartache because of the difficulty of conceiving in their thirties, and thought that there's a lot of pressure on girls to go to university, establish a career, find a partner and have children before the biological clock stops ticking.
Obviously the same advice wouldn't be given to men, as they are fertile for much longer.