There seems to be a mistaken perception that an action or derech commonly done and accepted in society therefore is proper. The fact that actions or derech commonly accepted in society don’t necessarily make them automatically permitted by Halacha.
Toward the end of Parsha Nitzavim, Moshe Rabbeinu informs the B’nai Yisrael about Teshuva:
For this commandment that I command you today — it is not hidden from you and it is not distant. It is not in heaven, [for you] to say, “Who can ascend to the heaven for us and take it for us, so that we can listen to it and perform it?” Nor is it across the sea, [for you] to say, “Who can cross to the other side of the sea for us and take it for us, so that we can listen to it and perform it?” Rather, the matter is very near to you — in your mouth nad in your heart — to perform it. (Parsha Nitzavim, Sefer Devarim, Perek 30, posukim 11-14) [...]