Why don't we give Adderall to everyone?

This is not an earnest proposal, but I think it's worth discussing. I'm sincerely looking for arguments against "stimulants for everyone", and AGAINST is my "gut" position.

It seems to me the frustration many psychiatrists experience with stimulant prescribing results from three things:

• ADHD is a spectrum and the cutoff is inevitably arbitrary to some degree.

• Most people's attention, whether or not they have ADHD, benefits from stimulants. What's more, stimulants often have a pleasant effect on energy and mood in general.

• Patient perception of possible ADHD symptoms is strongly influenced by culture: the increasing dry abstractness of modern tasks, the intensifying distractions of modern life - and people's expectations that they should be able to succeed at everything. (This latter point might relate to the gap between prescription rates in the US vs the rest of the world.)

Since stimulants benefit most people and are well-tolerated - why don't we give stimulants to everyone, PRN need for increased focus? Of course, we would do a drug test, require regular blood pressure checks, and monitor for side effects.

To repeat, I'm not making this as an earnest proposal, but the arguments AGAINST stimulants-for-everyone basically fall into

1) Can't justify the risk:benefit in people that don't have an illness (see above RE cutoff defining the illness) - do principles of informed consent not apply?

2) It wouldn't be fair to people with ADHD (an undiplomatic analogy us that this would be like allowing non-wheelchair-using athletes to enter the wheelchair division of a marathon)

3) Some people will abuse them (If that's the problem, then by the same argument, we should not prescribe benzos to anyone who doesn't have a chronic anxiety condition.)

4) There's already a shortage (a problem that could be easily fixed and doesn't bear on the inherent clinical or ethical considerations at all.)

Thoughts?