I don't pretend to be in a position to cost the program. I think it's speculative on anybody's part as to what enrolment rates would be.
We do know that the vast majority of maternity and parental benefits are collected by women. I think it would be reasonable to expect that relatively few men would enrol for that benefit.
You can do a rough calculation. If you pay a year's worth of premiums and you get the maximum benefit, on a present cost basis you're going to have to pay in for about 25 years to cover the cost of the benefit. If a lot people enrol for maternity and parental, then have one or two children and collect...that's quite a significant cost.
I would guess that there are few people who would pay their premium to get access to 15 weeks of sickness benefits. On a cost-benefit basis, I think relatively few people would find that an attractive position. I might be wrong, but I think that's why we need the experts to look at it.