The period of adolescence is lengthening in industrialized cultures such as europe, the united states, and australia. adolescents are taking more time to finish their education and establish careers. the average age for a first marriage in the united states is now 29 for men and for women.

The answer to this question is 26
People in industrialized culture tends prioritirez their career first before they even think to start their family because they need undivided attention if they want to establish a succesful career. Which make them them decide to marry within these age groups becau.