Caster wheels are used in many places, such as the medical field, shopping carts, furnitures, etc. Caster wheels make life so much simpler just because of how they help people function.
For example, people in the medical field rely on these small caster wheels to get patients around and quickly. A bed can be moved while it is still occupied by unlocking the casters at the bottom, and just pushing the bed to where it needs to go. The same is true for other areas of the medical field as well – having all equipment on carts with caster wheels allows doctors and nurses to move the equipment to where they need it.
There are handy caster wheels attached to most all desk chairs. Allowing freedom to move away from the desk, still in your chair, to grab something behind you and also position yourself more comfortably at your desk.
Caster wheels are also used on shopping carts, allowing you to mover around stores with ease. Caster wheels have an automatic swivel that makes the object the wheels are on align itself to the direction it is moving.
Wheelchairs with caster wheels are able to easily turn around in a relatively small space. Without this type of wheel, a large area would be required to turn around and go the other direction, much like a car would need.
From the above, we can find that caster wheels are really helpful in modern society.