AM I BEING UNFAIR AND TOO CRITICAL

I AM 55 , I'VE RAISED THREE CHILDREN ON MY OWN, WHO ARE NOW GROWN. I AM NOW DATING A 57 YR OLD MAN WHO HAD CHILDREN LATER IN LIFE, HE HAS SOLE CUSTODY OF HIS TWO DAUGHTERS , AGES 17 AND 19, AND HAS FOR THE PAST EIGHT YRS. HE HAS SPOILED THEM ROTTEN, HE DOES EVERYTHING FOR THEM, THEIR ROOMS ARE DISGUSTING, THEY DONT DO ANY LAUNDRY, CLEANING, DISHES, THEY DONT WORK, HE WANTS ME TO MOVE IN WITH HIM, BUT I FEEL THERE WILL BE CONFLICT, THESE GIRLS NEED TO LEARN TO DO THESE THINGS FOR HIS SAKE, AND FOR THEIRS WHEN THEY ARE OUT ON THEIR OWN. THIS IS SIMPLY PUT, BUT TRUST ME, I LOVE THE GIRLS BUT THEY ARE PIGS, SHOULDNT THEY START DOING THINGS ON THEIR OWN?