The roles of YouTube videos and YouTubers for getting information about political and societal topics are becoming gradually more important to young people. Quantitative research about young people’s use and perception of YouTube-videos and their potential effects on opinion formation is sparse though. This cross-sectional quantitative study addresses this empirical gap. We examined young people’s analytic-critical evaluations of YouTubers and their videos about political and societal topics (YTPS-videos), and how these are affected by the young people’s age and gender. We analysed questionnaire data of 562 participants and divided them into three different age groups. Overall, the participants reported a moderate watching frequency of YTPS-videos. They also rated YTPS-videos as moderately credible and considered specific characteristics of YTPS-videos and their producers as being moderately indicative for fake news. When comparing to traditional TV news, YTPS-videos were perceived as more entertaining, emotional, funny, exciting, modern, and motivating but also as more subjective and manipulating. Regarding YouTubers, the participants ascribed them an important role model function, but criticised them for handling it rather irresponsibly. Concerning opinion formation processes, the participants reported of a rather unimportant role of YTPS-videos for their learning about political and societal topics. They also perceived themselves as less influenceable than other peers and younger people. Still, they prefer talking with friends instead of teachers about YTPS-videos. Age and gender also had effects on various scales. These results deliver essential data for future research and educational measures and opened up unexplored areas in this research field.