If So Then Why?
A tradition is a belief or behavior passed down within a group or society with symbolic meaning or special significance with origins in the past. Common examples include holidays or impractical but socially meaningful clothes (like lawyers' wigs or military officers' spurs), but the idea has also been applied to social norms such as greetings. There are about 150 new traditions made each year. Traditions can persist and evolve for thousands of years—the word "tradition" itself derives from the Latin tradere or traderer literally meaning to transmit, to hand over, to give for safekeeping. While it is commonly assumed that traditions have ancient history, many traditions have been invented on purpose, whether that be political or cultural, over short periods of time. Various academic disciplines also use the word in a variety of ways.
Like a lot of words, 'tradition' has many meanings.
You are using the most trivial meaning, and then asking others to accept or reject the word based on the trivial examples.
To the OP. If you even need to ask what tradition is, then I suspect your are pupil of nihilistic Frankfurt School that adores Karl Marx.
Tradition is not only (sometimes outdated) summary of wisdom accumulated over generations, it is also basic building block of ones identity. Why is killing or raping bad? Because others have told you so, you dont have to find out for yourself.
Marxists, who question fundamentals not only rid themselves of well established identity, they also lose its value system in process. You end up with empty shells, that actually consider they hormone influenced "opinions" or even passing fashion to be their very identity. Discussing this very fact with them is found to be highly offensive as questionig their unhinged and borderline autistic beliefs is afront to insulting their identity. Them personally. You can also google Social Justice Warriors, if you are oblivious.
So in short. Tradition is a
lighthouse. Something that was build well before us, that helps us how to deal with infinite and dark space all around us. It can be interpreted, upheld or ignored, yet, people who at the very least respect it seem to have both longer lifespan and more far reaching legacy, than people who relish in being ignorant outside of their social bubble - Marxists.
Or even simpler. Imagine old customs as a map. A guidebook on how to orient yourself in the company of fellow human beings for mutual benefit. A good start to gaining some understanding of the lives of people living in a country is to look at their cherished customs and traditions. These illustrate not only what is important to the people living there, but also how they relax and have fun.
Customs and Traditions in Britain
Britain is full of culture and traditions which have been around for hundreds of years. British customs and traditions are famous all over the world. When people think of Britain they often think of people drinking tea, eating fish and chips and wearing bowler hats, but there is more to Britain than just those things.
Daily Life and Social Customs
Houses, Leisure, Sports, Work, Family, Kinds of Shops, Food and Drink, Clothes, Music, Vacations, Money, Pubs,
Social Class , Etiquette,
Find out more here about daily life in Britain
Calendar Customs
Calendar Customs are those which happen on on specific day of the year.
Special Days and Events throughout the Year - Calendars of events, special days, national holidays, festivals and celebrations which take place in the UK.
British Folklore, Legends and Superstitions Calendar - Take our adventurous journey through the year with lots of stops along the way to learn about almost forgotten legends and pastimes from our country's folk history.
Unusual Customs and Traditions - A long time ago the year was marked out with special days which marked the passing year. These were days of celebrations where people would do things, eat things or make things which they would not normally do. Cheese rolling, Nettle Eating, Toe Wrestling, Bog Snorkelling are just a few of the strange, bizarre, wacky, eccentric and even mad festivals still taking place in Britain today.