Sorry, Doc, my last post unintentionally seemed a bit stroppy. Yes, of course I see your points. I don't actually know what would be the best solution. Currently, I have some sympathy for employers who covertly discriminate against women of childbearing age because they have the right to go off on parental leave within months of starting a job.
It's an especially vexed question because all women aged under 50 are assumed to be of "childbearing age", therefore it becomes a matter of sex discrimination. Nonetheless, the current regulations do more than level the playing field. There's no other circumstance in which an employee can take a year off work, at short notice, and have their employment held open for them. It is quite a big ask of employers. It is certainly miles beyond what's available to other "naturally disadvantaged" employees.
The whole issue of childbirth & employment is complicated. It should really be addressed by massive forced restructures of working practices, imo, but for the moment I'm just looking at this little bit of the problem.
I don't know whether modifying the rules to re-instate a qualifying period would make a difference to the perceived employability of women. I assume this was evaluated before changing the law, so probably not. My post was prompted by a flurry of threads on Mumsnet, in which posters had started jobs while pregnant and seemed (to me) overly indignant that not everyone thought their right to continuous employment should trump their responsibility to their employers.
Under the current law a pregnant woman can, effectively, get a job nearly two years before she wants it, as insurance in case she wants to return to work post-baby. I can see why that might piss employers off!
You asked what policy change I might be looking for. I was looking for a discussion, really, not a policy change ... The idea I brought to this thread was that a qualifying period of 9 months would help to assure employers the women they hire are in it for the job, not as a pregnancy strategy. I still think people should get their money, just not the immediate future-proof guarantee.