It’s a first step.
I would wait to overhaul Social Security AFTER Republicans have control of Congress and the White House.
As for Medicare and Medicaid: I firmly believe Medicaid is best left to the States to handle. They are closer to the problem and medical treatment is licensed by each state.
Medicare should be means tested. My dad was forced into Medicare by his company even though he still has medical insurance and can pay his own expenses. It’s unsmart and smacks of wasteful government spending combined with that craving for control.