Live steam can be very harsh on the grout--the stuff in between the tiles. Once the grout loosens up and cracks off, steam gets under the tiles and loosens them up.
D a m h I k t........
There is no substitute for daily cleaning with hot water and small amounts of soap.
Put it this way.
You can shower daily, or even multiple times a day
you can take a steam bath with a brick and harsh chemicals once a week.
What's easier on your body?