There is one big reason for this. You look at things in your past, and you are bound to see better things. Those not born in will find that they remember Christmas as a time of excitement. Stress, yes, but the kind of stress that you are eager to go through. You enjoy Christmas music, lights, shopping, and the wrappings. You remember what it was like to put up the tree. Then, the morning of--and anticipating what you were going to get. Now, it's just another day of field circus.
You remember a time when you were in school. You remember going in sports, participating in field trips, and even making the cheerleading, yearbook, or class-trip crews. It wasn't perfect, but at least you remember times when your life had variety. Now, it's all field circus.
You remember vacations when you actually did something. Most remember going to Six Flags (or Disneyland). Some went to the ocean to surf, play in the arcades along the coast, or swim. Some went hiking in the mountains. Others took drives to Canada--Niagara Falls is popular. People remember the zoos, amusement parks, camping trips, and even the occasional person remembering that trip to New Zealand (where they have some of the best bungee jumping in the world), Europe, or South America. Now, it's all field circus.
No wonder they don't want people remembering.