In a 2006 study, 18-month-old toddlers helped a stranger who needed assistance across most of ten tasks without being asked or rewarded, but a 2008 follow-up found material rewards for helping later reduced how often toddlers helped

Toddlers help strangers without being asked, but rewarding them for it makes them less likely to help later. The post In a 2006 study, 18-month-old toddlers helped a stranger who needed assistance across most of ten tasks without being asked or rewarded, but …