like is said in some circumstances its a choice, if your dh's job may not be stable then it is not really a choice like you say.
i am luckyish that my dps job is relatively secure, but its not totally secure and for that reason we have taken out an income protection policy which we pay into each month, along with pension, life insurance and critical illness cover etc, these bills stretch us, but they do mean that we should be coverd if dp loses his job, at least for long enough for him to find another job.
and re their not being jobs available, dp was made redundant and whilst there arent always fab jobs available, he signed on at many agencies when unempleyed and there was always some work, he covered for binmen, street cleaners, did horribly mundane factory work that left his hands covered in blisters. these jobs were not ideal and we scrapped by, but it was a job! so even if he lost his job tomorrow the first thing he would do is sign on at agencies and do work like this, not ideal but it can be done.
and expat dp works in a childrens home down a country lane, shift work so late finishes, early starts and again no public transport.
he does sometimes bike, ie in the summer, but it takes almost an hour and in the winter and at night when its dark the roads really are NOT safe to bike, there have been a couple of cyclists killed on one stretch of road already this year or course financially if he died i would be better off, phaps i should encourage him to ride more