I don't think it's true that she has no career. She's done lots of acting and modelling work in the last few years, while studying. I'm sure she'd be doing more if she didn't also want to study. After the PhD, she'll have lots of options. I'm sure she will get acting parts still, having carried huge movies like Beauty and the Beast. Alternatively, she could continue in academic research, or teach at a university. She'll have lots of options.
As for having no children, that doesn't really mean anything. Currently she's studying full-time, and just living her life the way that millions of people without children do. She's only 35 and might well have frozen her eggs. Maybe she'll have them at 40 or 43.
People always say this about Jennifer Aniston too - ohhhh, her life is so empty. But she's always been busy working, having relationships, seeing friends. She just doesn't have children. No one goes on about how empty a man's life is when he's having a perfectly full life with work, friends, and relationships, but no kids!