I have a cousin who uses a wheelchair, it seems unfortunate, but now they have a wide variety of formats to meet specific needs for their users, so it's not as bad.
My brother, who died in 1998, used a wheelchair that was heavy and hard to use.  Today, you are right, there are many more lightweight options.
I'm sorry to hear about your loss. Yes they are lightweight now and have specialized seating adaptions, individualized controls, and other features to help efficiency and ease of use.
Are there any that are aluminum and foldable?
Wheelchair
A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, or disability. Wheelchairs come in a wide variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, individualized controls, and may be specific to particular activities, as seen with sports wheelchairs and beach wheelchairs. The most widely recognised distinction is between powered wheelchairs ("powerchairs"), where propulsion is provided by batteries and electric motors, and manually propelled wheelchairs,
relationship with Coca-Cola. As such, the McDonald's people were then not particularly enthused with us as they now had Disney, but they had to fulfill their arrangement with us."
Production Filming.
In one scene, Eric Cruise (played by Calegory, who has spina bifida and uses a wheelchair in real life) is seen rolling off a cliff in his wheelchair; Raffill noted that he performed a portion of the stunt himself, explaining that "it's very hard to do physical things when you're