Medical care in the past say in the 50's was dirt cheap compared to today and worth about what you paid for it. Diagnostics were x-rays and basic blood tests. Treatment for Heart disease in the 50's was typically developing a healthily life style, retire, take it easy, and wait to die. A diagnosis of of cancer was typically a death sentence.
No doubt government has played a role in the increasing cost, particular regulations on delivering healthcare, and regulations on development of devices and medications. However the biggest factors are cost of high tech treatments and cost of specialized personnel.
In 1950's 85% of American lived in houses and 70% owned those houses. Typically people live in those houses 20 to 25 years. Today only about 60% live in houses. 100 million live apartments. People who own houses live in them an average of 8 years. Those in apartments live there for about 3.6 years.
In most of America today neighborhoods have changed drastically. I remember knowing all of my neighbors next door, across the street and most of the people living down the block. Today I know those that live next door. In my last condo, I really didn't know anyone, they came and left so fast.
The bottom line is that the old neighborhoods are shrinking and they are unlikely to return in most cities in America because the world is changing as are it's people.