It seems to me, anecdotally, that the number of kids you have is inversely correlated with the amount of money you earn. My blue collar friends have the third kid in the oven, my DINK attorney friends are worried about "financial viability" while they watch their fertility window slip away...
Is your blue collar friend religious and the dink is not? In my personal experience that has been a better indicator because the religious educated people have kids and the non religious blue collars tend to have less kids
Is it possible your blue collar friends are more financially secure than your DINK attorney friends?
An attorney could be 26 and hundreds of thousands in debt and effectively earning $30 per hour working 60 hour weeks earning $100k per year, while a plumber/hvac/welder/electrician/etc could be earning $100k per year with no debt by the time they are 25.
