How to run an AppImage

it gives the permission


The permission is already there.

Think about it:

The kids have no root account. So AppImage cannot magically create permissions out of thin air that were not already there.

You need to learn about how Unix permissions work.

appimage no need root to install since…it doesn’t install and can use a imaged file structure instead with it s own permission.
this is how an app image can run a wine app for example without wine installed on the computer itself.