De Monetisation.... Lessons to be learnt

The Nation is Happy at the decision taken to demonetize.  

Unfortunately the entire Nation is equally angry at the poor arrangements made.
The ATM's should have all been Functional from the very moment the declaration was made. Accepting Cash should have been blocked at all ATM's in the country. But delivery of Cash in smaller denominations of 10's - 50's - 100's should never have been stopped.
The failure lay in stopping ATM's from operating. Had the ATM's continued to serve, no one would have been in distress.
Only those with stashed amounts would have to visit the banks to exchange their notes as per norms.
Also at Banks those with less than 10 notes should have been asked to line separately. Absolute chaos at all banks. When I heard Finance speak, I thought they knew what they said. But after witnessing the chaotic conditions throughout the country, I feel otherwise.