It is mandatory in most areas due to water conservation efforts.
It depends on the shower heads, bath heads, and the person. If you take a long shower, and use little water for a bath, bath is better. If you use a lot of water for a bath and take short showers with water saving heads, a shower would be better.
There are economy heads that use less water.
Metal shower heads look nicer but show hard water, plastic will not show hard water, if you have a water softener a metal shower head is the way to go.
a shower can be a excellent water-saving choice
to conserve water
'LED' shower heads are safe to use, additionally, they provide a visual indicator of water temperature, rather than relying on touch.
You can find a large number of water saving showerheads. Bricor makes the best Low flow shower heads, but they also charge about ten times what you'd pay for the no frills Ultra Saver (3 to 8$)
Standard high-flow aka unrestricted shower heads made before 1995 were water-guzzlers. As of 1995 shower heads must be low-flow, with a rate of 2.5 gallons per minute.
shower heads can get rust particles in them or get limed up, thus there is restricted water pressure and water volulme. replace it then.
Remove the shower head on the shower and see if it is plugged. Run the water with the shower head off and see if the pressure is better. Depending on where you live there may be a water saving feature on the shower head (mandated by law) for water consevation. Low flow shower heads often have a restricter in them. Delta has a brass washer with a very tiny hole in it and Moen has a rubber plug with 3 small holes in it.
Not really, because it uses less water, but it takes way longer to have a shower so in the end it uses the same amount, if not more, water than a normal shower!
Shower heads lose their effectiveness when they become clogged with mineral deposits, especially in areas with particularly hard water or well water. Metal shower heads are more prone to corrosion from hard water. You can extend the life of a metal shower head by cleaning it regularly. The best way to do this is to put one to to cups of a 50-50 white vinegar/water solution in a plastic bag. Position the bag so that the shower head is submerged in the vinegar water. Secure the bag with tape to the shower head nozzle. Leave it there overnight to dissolve the mineral deposits in the shower head.