I've noticed that age groups in media consumption aren't as rigid as they seem. For example, shonen anime like 'My Hero Academia' or 'Demon Slayer' are technically aimed at teens, but their universal themes of perseverance and friendship resonate with adults too.
On the other hand, seinen works like 'Berserk' or 'Vinland Saga' cater to older audiences with their complex narratives and mature themes, but younger viewers might still appreciate the artistry and depth. Similarly, isekai light novels often attract a broad range of readers, from teens to adults, due to their escapist appeal.
Even children's shows like 'Studio Ghibli' films or 'Avatar: The Last Airbender' have layers that adults can appreciate, proving that great storytelling transcends age brackets. It's more about the individual's taste and emotional connection than a strict demographic label.