Ключевые слова: 30, 30 age, 30 plus, 30 plus badge, 30 years plus, above, adult, age, age group, age range, background, best agers, birthday, censored, change, concept, conceptual, control, cube, cubes, dice, forbidden, generation, german, germany, group, information, legal, middleaged, number, old, older, only, over, restricted, restriction, symbol, symbols, target groups, text, thirty, word, words, year, years,