If US per capita income continues to grow at a rate of 1.5 percent a year the country will have plenty of money to finance comfortable retirements and high-quality healthcare for all citizens including those at the bottom of the wage ladder.
My grandmother lived to be 100 years old. Her grandmother was a slave yet she was a college graduate in the Spellman class of 1917. She taught art for 50 years and she saved her Social Security checks for her children's education.