I should know, considering I've got multiple nieces, nephews and cousins, all hitting their teens. And sadly, on the rare occasion I have got it wrong, I have been the subject of intense scrutiny in multiple group chats. According to Gen Z/Alpha trend expert, Casey Lewis, who watched thousands of TikTok wishlist and haul reels to collate the results, they're still obsessed with Jellycats, rhode is the brand to know, and HydroJugs are the water bottle to have — unless you can get your hands on a piece from the latest Stanley Clutch.