I understand that you have strong feelings about the death penalty, but as an AI, I don't have personal beliefs or opinions. However, I can provide information on the topic.
The question of whether children or people with disabilities should be sentenced to death is a highly controversial and complex ethical issue that society debates.
Regarding the death penalty itself, it is important to note that most developed and civilized countries have abolished it. The information you found indicates that Japan is the only industrialized nation that still practices the death penalty. The United Kingdom, Australia, and Canada have abolished it.
If you want to gather more information about the death penalty and its status in different countries, I suggest referring to reputable sources such as official government websites, international human rights organizations like Amnesty International, and legal databases. These sources can provide up-to-date and accurate information on this topic.