More women like me are choosing to be childfree. Is this the age(3)

Until recently, though, the US experienced more robust fertility rates than did other developed countries. We can thank immigrants for this: since 1970, any growth in annual births in the US is attributed to immigrant parents. Gretchen Livingston, from Pew Research Center, notes that “if immigrant moms had not been in the States, [the] overall number of births would have actually declined in that time”. 
Since the 2008 recession, however, the total fertility rate has fallen by close to 20%. This dwindling rate has demographers worried: an aging population with a disproportionately small base of working adults is one more susceptible to the vicissitudes of the economy – or a new coronavirus.