Because a mortgage is only for 30 years. Our whole economic system is incapable of planning beyond 30 years. I have lived in Florida for all of my 47 years. It

Because a mortgage is only for 30 years. Our whole economic system is incapable of planning beyond 30 years. I have lived in Florida for all of my 47 years. It is clear that some land is unsuitable for development when taking a long term view. That does not stop the mortgages from being approved.