instead of (perhaps illegally) recruiting for people of a certain age group, why not just search for people who liked (for example) Fortnite or Harry Potter or

instead of (perhaps illegally) recruiting for people of a certain age group, why not just search for people who liked (for example) Fortnite or Harry Potter or similar categories? Sure, you might get a few false positives (showing your ad to a few older people) or false negatives (missing some of the target group), but it probably works just fine and isn't technically age-oriented. The company could just say that it likes people who are into hobbies (eg - reading fantasy novels or mobile games).