Study says stress at work is keeping some from having kids

Would you let work keep you from having kids? If you said yes, then you're not alone. According to a study in Canada, of the 33,000 people surveyed, 28% said that the stresses involved with their job and the difficulties that occur when trying to balance work with family life, have kept them from having more kids or prevented them from having children altogether.

According to this article on the study, various 'family-friendly' tactics in the workplace, such as job-sharing and unpaid leave, actually cause additional stress and prevent workers from getting ahead in their careers. A number of workers are weighing the pros and cons between work and family life, and many are choosing the benefits of a career over children.

While I completely understand why people would choose a career over kids, I do wonder if they'll end up missing out in the long run. What do you think about career vs children? Does it have to be one or the other?