Acutally I don't think it is convenience per se. It is perceived value. Just about everyone agrees cars provide immense value compared to their danger to our society. There is not a similar agreement to the value of guns in our society.
I agree.
People that do not use something tend not to value it as highly as those that do.
Congress currently places a very low value on the Constitution and the Bill of Rights.
"Racing is life. Anything before or after is just waiting." - Steve McQueen