They're going to be taken care of by a big, well-off extended family, as hundreds of generations of children have been prior to the modern invention of the nuclear family (hey, Rayiner, remember all the threads about this?). Then, sometime between 1st and 4th grade, depending on how First Step applies to Holmes, they'll also have their mother at home full time rather than visiting her a couple times a month.
They'll be fine. Lots and lots of kids have it actually hard, because their mom is sent away when they're 5 or 6. Here? No problem. I think she's a sociopath, but her family planning decision makes perfect sense, and the people writing comments about how callous or irresponsible she is are telling on themselves in a particular weird way.
Embryo freezing is a miraculous, perfectly viable option for women desiring children, but unable to commit to pregnancy for whatever reason until they are too old. It decouples the embryo viability from the mother's physical age.
My wife was forced down this route when diagnosed with cancer at 35 - the chemo and radiation killed all her eggs and forced her into a mandatory regime of chemically induced menopause. The presence of estrogen in her body is now a life threatening condition for the rest of her life.
We were able to freeze three embryos prior to starting treatment, and are considering surrogacy now.
There is nothing creepy about egg freezing. There is something very creepy about telling a woman that she should freeze her eggs rather than having a kid, because you've decided that's more appropriate.