I can understand your response - however, this has been done from the heart - I have visited over 100 schools in Asia - I have spoken at conferences on school safety - and it upsets me that for a few baht per day I can not get schools to take action - I don't care if they chose another system - but until it happens to them they only seem to count the pennies - Numerous children die getting left on buses - 80 children in one-year alone pre covid across Asia
We are prepared to run at a loss to encourage schools to take up a system and if guilt shaming them a little bit as well as giving them an incentive works - I have no regrets for trying!