I appreciate what Barron is getting at here but I think he's taking an extremely contrarian stance to get at his point. Obviously Venmo is not condoning childhood alcohol consumption - a better and more nuanced take (which he alludes to elsewhere in the article) is that the conditions of modern life have prolonged adolescence for millennials (and generation z) - the traditional signifiers of adulthood are gone and the aesthetics of contemporary corporate app and internet design have adjusted to reflect this shift.