That I’m not really sure. I do know however that early exposure (from childhood) to allergens helps prevent allergies from developing later in life.
So people who had a cat when they were a child are much less likely to develop cat allergies when adults, and similarly children who eat nuts are less likely to develop nut allergies
Just lots of scratch posts and reward positive behavior with treats and praise.
Also clipping their nails from time to time helps. Unlike declawing (which is basically a surgical amputation, and is basically animal abuse), nail clipping doesn’t hurt the cat and isn’t a permanent thing, but it does help with damage control