Ключевые слова: 18, 18 plus, 21, 21 plus, adult, adult only, adult warning icon, age, age warning, alert, allowed, app, attention, banner, business, button, content, eighteen, eighteen plus, forbidden, graphic, icon, illegal, label, law, limit, mark, movie, old, older, only, over, permission, pictogram, prohibition, restriction, round, sign, stamp, sticker, stop, symbol, twenty one, twenty one plus, under, warning, web, year,