Adhd is not ‘loss of control over attention’. It’s an executive function disorder.
Meditation isn’t ‘getting control over attention’ it’s paying attention to your inner self in order to create a distance between you and your thoughts. It’s more about the realisation that you aren’t your thoughts, feelings, emotions, but that the real you is having them.
You don’t need to be meditating to control your attention.
Pay them to care more?