Quoted from vid1900:If you never get married, and never knock any broads up - you will save, on average, $280,000 per child you don't have to support to the age of 18.
Then think of the additional savings when they don't move back into the basement, as 58% of them do, after college.....
Pretty spot on.
I estimate 41% space gain during that period they are out.
A nice meal and place right under the pins await when they return.