I'm sorry your reading comprehension is that poor. As per the study:
'Furthermore, the fact that none of the infant burials found in Valencina have grave goods suggests that, among the communities that lived in or frequented this site, social status was not ascribed by birth (and therefore no significant inheritance of wealth occurred), contrary to what would happen later in the Early Bronze Age). Therefore, it is fair to assume that the individual inhumed in structure 10.049 gained a prominent social position through merit and personal achievement and did not ‘inherit’ it by birth.'