Weird news - Child gets left behind in bus in Dubai, dies

This happens in different countries, and gets repeated so much you would wonder there would be a technical solution that can detect when a child gets left behind in a vehicle when it is very hot, so that they don't suffer in the stifling heat, something that can kill (and in fact, has killed many children over the years). However, it is still odd. When parents send their children to school, they sort of transfer the responsibility of the children to the school as soon as they get into the bus. So when they find out that the child had slept off and nobody noticed, and in the heat of Dubai weather, the bus would have become a death trap with heat and suffocation (link to article):

DUBAI: A six-year-old Indian boy was found dead after he dozed off in his school bus and left behind alone for several hours in the UAE on Saturday, according to a media report. Mohamed Farhan Faisal from Kerala was a student of Islamic Centre in Al Quoz and had dozed off after boarding the bus. He was left behind after all other students disembarked outside the centre at 8 am, the Khaleej Times reported. The Dubai Police said that they were told of the tragedy at 3 pm. "The child was found as the driver took the bus out to drop the students back home," a senior police official was quoted as saying by the paper.