Baths do have important place in homes where there are young children. Also, for many older people who need to be able to actually soak in the hot water.
I had my ileostomy over thirty years ago, occasionally do have blockage and then one of my ways of coping with this is good soak in hot bath. And, again if I get home in the winter feeling chilled , nothing like a warm bath to deal with that.
I love my shower also, have this in my en-suite. But when I had my bathroom redone recently insisted on a bath with a shower over.
All of these run from my combi-boiler. Only time ever any problems is if I am actually in the shower when the heating switches itself on in the morning. I just keep clear of that few minutes.
Cannot understand people saying they are unable to use their baths due to medical conditions. There are so many wonderful aids that can be used to assist this.
Yes, it definitely does lower the price of property if there is no bath installed.
There are baths out there with small doorways at the shower end, to allow easy and safe entry.