This question is indeed very unpopular. I don’t know what your teacher is referring to specifically... but when it comes to cultural issues, the answer may often lie in past history.

What I know about bees and it has something to do with culture is that bees are the symbol of the Napoleonic royal family. The specific reasons are as follows (very complicated):

The French Merovingian family ruled most of today's France and Germany between the 5th and 7th centuries. This period of time not only coincides with the Holy Grail Legend, but also coincides with the era of King Arthur, the central figure in the Holy Grail Legend. There is no doubt that the Merovingians were the worthy rulers of the Franks. They are not kings who were “elected and installed”. Crown princes who legitimately succeed to the throne will become kings on their 12th birthday. Their job was not to run the country - that was left to the "court chancellors". They are only considered to exist as representatives, with the power and status in their hands just like the monarchs in the constitutional state of the 21st century. They were also allowed to practice polygamy and sometimes took advantage of this privilege.

One of the glyphs long used by the Merovingians is the bee. Childeric's tomb contains hundreds of golden bees. This custom continued for many centuries. When Napoleon was coronated in 1804, he ordered gold bees to be adorned on his royal robes. He was fascinated by the Merovingians and sent people to compile their family trees in order to find out whether there were any descendants after the fall of the dynasty.