What is "modernity" in your question? I can take an example from my home country of Norway. If you go back 150 years, you would notice that children were very polite, and that their knowledge of English was limited because they had not yet started school. If you do the same today, they will immediately hurl various insults and profanities at you that they have learned from rap music, cable TV of youtube. In fact, certain profanities are universally recognized even by toddlers. How can this be?