Considering inflation, what’s the going rate for the Tooth Fairy in Australia?

This is something different to 300K salaries and 2005 Camry ownership…

My son lost his second tooth yesterday.

We never have cash in the house and being a Sunday evening, I wasn’t going to the ATM.

Only note I could find was a $20. My son is now $20 richer.

What’s the going rate for other homes in Australia? According to the 2018 study of Bluey episode “Markets” it’s $5.

Have I created a monster with my lazy behaviour? Can I pass this off as temporary inflation that will go back to normal once interest rates rise?