My neighbours decided not to install a bath when our houses were being built as the bathrooms are quite small, we opted for the bath as we have small kids hence need one.
She now regrets her decison as she has a grandchild.
I would not get rid of the bath, it was the first thing my sister re-installed when she bought her first house, the previous owners removed it.
I think anything that one expects to find in a house should be left there so when you are selling you are appealing to as wide a market as possible, many older people don't like showers and kids need them so don't be hasty.