how much interest does the average citizen pay in their lifetime?

Good morning, our temperature outside is 15 degrees and inside it is 72. Our roads are clear and may be black ice in some places. The snow is still in place.
The other day we had a talk about me staying home while mom drives in these terrible conditions while I make a good and healthy pension just staying home. I drove and walked across the dam (3/4 of a mile and up 118 steps and down 118 steps twice a day) for 15 years before my legs just could not climb and walk across any more. At that time mom worked at the hospital we had only one car for about 5 years and mom walked to work (900 yards) in all conditions. Mom earns her social security plus what she earns at Walmart. We were in terrible debt and mom is digging us out with her job. Our home and her van will be paid for in another year and that will free up close to a half millions dollars in interest payments.

See walking on RipRap.

See Walking.