families I don't know about making the whole house feel that way.
I have bought two properties with showers in the bedroom. THe first was a 1890s Georgian city centre property, all original features, marble firepalces, rooms 32 ft square, original walnout shutters, huge bay windows, all plasterwork intact. Stunning and elegant. It did have a bad shower cubicle in the master bedroom, but was so easily rremoved and certainly didn't put me off the property.
The second was a place I bought this summer. A very modern house, with a lot of fabulous interior features, again huge, light, amazing lighting, very modern bathroom and kitchen fittings.
Also happened to have a shower in one of the bedrooms - but works really well. I am keeping the shower this time, it gives us another shower in the houee, it is contemporary and my DD loves it. Again it doesn't make the house feel old fashioned at all.
It is such a small feature I don't get why it would stop someone buying a house.