In the highest quintile, women form families at age 25 and age 27 in the second and first groups, respectively. So, while the higher strata in all of the countries clearly postpone the age for forming the first spousal couple (as is characteristic of the second demographic transition), this is still an incipient process among poor women in the countries of the region that are just entering the first demographic transition. Only among young people in countries at an advanced stage of demographic transition is ceasing to be single part of the process of gaining autonomy from the family of origin.