Urf (culture) plays a very very important role in Islamic legislation and jurisprudence. Islam is a universal religion that encompasses all cultures. That being said the key point is: Islam accepts all cultures as long as it does NOT contradict any teachings of Islam.
"Anyone who has a brain should nourish his intellect just as he nourishes his stomach and there is no better way to nourish the mind than reading a book and benefiting from it. Read whatever you can get your hands on, even if it's a cookbook."
_ Sheikh Sa'eed al-Kamali حفظه الله
A student of knowledge can forget anything, but should never forget sending salutations upon the Prophet ﷺ whenever and wherever his name is read or mentioned.