AHA! You got it! The very reason I want to replace the tub, with a shower stall is because I am sight impaired. If the master is occupied, I would like the opportunity to use either bathroom.
Guess Mike will be tearing up a new bathroom. He learned how to remove an ancient cast iron tub (special saw) and replaced it with a Lowes walk shower stall kit, which even has with seats. Appreciate everyone's input. Guess future re-sale will be our son's problem!