Younger millennials were significantly more likely than other age groups to have never been kissed. Nearly one in five (19%) people aged 18-24 said that they have kissed zero people. But people in this age group were also equally likely to say they’ve kissed between two and four people (19%), or five to 10 people (19%). Understandably, older people were likely to have kissed more people; Those 55 or older were significantly more likely than their younger counterparts to have kissed more than 50 people.