My single mother raised 4 kids and bought a house on 1980s money, like $2-3 above minimum wage then. I'd take that bet. Pay off my 15-year mortgage in 5 years

My single mother raised 4 kids and bought a house on 1980s money, like $2-3 above minimum wage then. I'd take that bet. Pay off my 15-year mortgage in 5 years and dump the rest of my money into savings. Then when the kids got old enough for college I'd write a check for the hundreds of dollars it would cost for a 4-year education. Do you know anything of the 70s economy?