What about CASA issue a credit card or ASIC size licence similar to the US licence.
Use Tech to store your data as your passport now does, with a Photo as your ASIC does.
It could also have a swipe function to open gates to GA tarmac's which could record who,
when and how people were entering or leaving that space.
A boost for security? I also suggested that function for an ASIC, would save an MRO's time
to come and let you out, or in.
Then again being CASA they would probably have to charge a couple of grand for it, renewable
every month with a surcharge to alter Data, they would probably have to employ another 1500 people
to oversight it and add another 50 cents a litre surcharge to fuel to cover that.
Sorry bad idea.