Instead of the typical combo heat/light/vent unit, consider at-the-source ventilation to reduce moisture and odors in the bath. You may want to install one unit at the toilet area and one at the tub or shower area. Ventilation units are best on a timer. Depending on the manufaturer, the vent should run for five to 10 minutes after the user has left the bath.
When you consider the amount of moisture in a bathroom, tile, solid surface and quartz composite make the most sense for wall coverings. Depending on the size of the bathroom, cost can become an issue. Consider finishing the walls at the toilet area with tile or another nonporous product.
The products on the market today give us the opportunity to design baths without an institutionalized look. Our responsibility as design professionals is to enhance the livability of the home and accommodate the occupants at all stages of life. You can change the course of humanity one (kitchen and) bath at a time.