So teens are a vangaurd that is needed to attract 20's and 30's who will actually spend money? I don't think that adds up. 20's and 30's will use things like

So teens are a vangaurd that is needed to attract 20's and 30's who will actually spend money? I don't think that adds up. 20's and 30's will use things like Tinder, Craiglist, eBay, etc that meet their needs and... generate useful outputs for both parties.