Sumo wrestling is a very ceremonial sport that has been practiced for more than a thousand years in Japan. With pre-match rites including ceremonial stomping to ward off evil spirits and salt purification, it is intimately associated with Shinto religious activities. American wrestling, on the other hand, is less about cultural or spiritual value and more about entertainment or competitive grappling methods, whether it is professional (like WWE) or amateur (like collegiate and Olympic wrestling).
The rigorous restrictions regarding conduct, nutrition, and attire that sumo wrestlers observe in their training stables (heya) further reinforce the ancient Japanese ideals of discipline and deference. American wrestlers, particularly those in professional wrestling, have greater autonomy over their personal and training schedules, while amateur wrestling is more regimented and sport-oriented than it is a lifestyle choice.
One of the main reasons sumo wrestling hasn't taken off in the United States is cultural differences. Sumo wrestlers are revered and devote their whole lives to the sport in Japan, according to rigorous regulations and customs. Sumo's slower, more ceremonial approach is less popular in the United States, where sports are more centered on individual skill, entertainment, and quick action.
Differences in body image are also significant. Lean, muscular players are often preferred in American sports, whereas sumo wrestlers strive to be as large as possible in order to obtain an edge. Due to these distinctions in custom, way of life, and athletic standards, sumo is not a popular sport in the United States.