to blame women for leaving childbearing late, without any consideration of WHY this trend is happening or how we could make it easier for women to give birth earlier. IME there aren't many older mothers who deliberately chose that option. And the young women I work with - in their late 20s, ideal age physiologically to give birth - are all living in grotty flatshares because there's no way they can afford a family-friendly home near their London jobs.
This, with bells on. I am 40 and having IVF. Not through choice - I got cancer, met DH late and then had to go through PIGD to avoid passing on my genetic cancer risk. I have only been financially secure in the last 3 years (which is roughly how long the IVF has taken).
You can just as easily make lazy arguments about young mothers (more likely to need benefits), immigrant mothers (have too many kids), SAHM (not paying into the pot) etc. It seems that older mothers are ripe for sticking the boot in in a way that other mothers are not.