"Age segmentation means focusing on the age range most valuable to your product or service. Marketing demographic age brackets are usually
18-24, 25-34, 35-44, 45-54, 55-64, and 65 and older."
Team PickFu's demographic segmentation guide. This guide will explain how to use demographics to increase your marketing awareness which is also coupled with Pickfu's segmentation polling software.
www.pickfu.com
Your 18-34 bracket is bupkis, because they don't all like the same stuff. You are looking at something saying 18-34 without understanding that the range is only coveted because advertisers view it as the most likely to spend money, not because they all like the same stuff. When it comes to D&D, what the teenager likes and wants isn't going to be what the much more mature 28+ year old wants.
And it's Gen-Xers who spend the most money as a generation, so there's that...