The US is a big place with very different climates and houses reflect that. Materials used vary based on availability and need. I have lived in 13 US states. In the northeast, houses are usually 2 story wood frame with vinyl siding or brick. In the southeast, houses are usually 1 story with siding or brick. In Florida, most houses are made of concrete block covered in stucco to resist hurricanes. In Oklahoma, i.e., tornado alley, most houses are single story brick. In Texas, homes are about 50-50 between one and 2-story, usually brick. In California many homes are stucco.
It is rare to fence front yards. Many believe that fenced front yards detract from curb appeal. In some areas like Texas and Oklahoma, backyard fences are common. They are less common on the east coast, and some upscale neighborhoods prohibit them. Dogs are walked on leashes or trained not to leave the yard.
Mats in front of the stove (and sink) are designed to be easy on the feet, since kitchen floors are hard. Open concept floor plans are very popular, but most houses have a foyer so the door doesn't open directly into the living room. Most houses only have doors on entry and exit doors, bedrooms, bathrooms, closets and laundry rooms. Kitchens looked old fashioned because that is the preferred style. Sleek euro-style kitchen are not popular. Most homes have attached garages that lead into the laundry room. This is to help contain dirt. Most laundry rooms are near the kitchen to make getting groceries from the car to the kitchen easy.
Garbage disposals are a great convenience. Most upscale homes have master bedroom suites, which include the bedroom, one or more walk-in closets, and a bathroom with two sinks, separate shower and tub, and toilet, often in a small separate room off the bath. The master bathroom is almost always the largest and most luxurious in the house.
Most US home buying, home selling and home improvement shows are filmed in California, which is a very expensive place to live, and not representative of the US as a whole. In particular, yards tend to be smaller than in other areas, especially since Cali is mostly desert.