My DC has been buying big bottles of ice coffee and drinking it like it's a milkshake. They're 15, I don't think they should be having that much caffeine at this age, they definitely don't need it and it's making them noticeably hyperactive.
I talked to them about not drinking so much but I'm thinking of putting a stop to it altogether. AIBU? I feel like I might be. Am I being too overprotective?