For a healthy young individual walk-in tubs and standard tubs are equally safe. For older individuals or people with any trouble moving their legs walk-in tubs are definitely safer and less likely to cause injury.
Yes, they are.
No, you completely replace it.
Most companies that install tubs and showers will carry a certain amount of product on hand and should be able to help you. You will easily find a walk in tub for your mother.
Saratoga Walk-in Bathtubs are Walk-in bathtub Specialists 51 Broad Street, Waterford, NY - (518) 326-2520
The amount of water that a tub holds depends on it's size. There are double slipper tubs that hold more water then a regular bath tub but, there are larger bathtubs that hold more water than a slipper tub.
Because walk-in tubs are designed for use by the disabled, the major risk factor is going to be the disability itself. As for inherent dangers, they're no more dangerous than traditional tubs.
Yes, walk in tubs are considered safer as long as it is made of some sort of non slip material. Most accidents involving bathtubs occure in normal tubs.
I am not quite familiar with a walk in bath tub unless you mean a shower. I would suggest looking up home improvement forums and posting your question there.
There don't appear to be any safety concerns regarding having a freestanding tub and young children. At least no more concerns than you would have with a regular bathtub.
Clawfoot tubs are generally more appealing to the eye because of their unique rustic look, rather than a regular tub. They are often not as sensible though if you would like to shower in them as the shower head is just an attachment from the faucet, not piped through the wall like a normal shower. Clawfoot tubs can also have very high sides making them much larger and more difficult to get in and out of.
tubs and tubs and tubs of fun
Prices on walk in bath tubs vary widely. The best price seems to be around 2100$ from the Home Depot's website. You can also look into conversions as it's possible to convert a regular tub into a walk in.
Yes, they can be, depending on the individual who the tub is for. Most of the time they are sold to older consumers who have a higher risk of falling. They do a good job, just like a regular bath.