Some host countries are forcibly sending refugees back to their home countries stating that such as the situation in their home country is safe. Many refugees who were sent like this went through brutal violence and some people were even disappeared.
These days, 24/7 news channels broadcast each and every happening in the world. And most of the news contains tragedies and crimes. By watching these things, many people are feeling sad and are having sleepless nights. So, in this case, ignorance is bliss. It helps us to sleep peacefully.
In general, a few teachers punish students, who are not scoring well in exams but they do not even try to understand whether they have any learning disabilities. This causes self-esteem issues in students. Psychologists can detect these learning disabilities and can collaborate with teachers to draft teaching strategies that are suitable for students with learning disabilities.