Why do some islands in the ocean remain uninhabited to this day?

Some islands have no drinking water, some are endangered, there are nature-protected islands, islands where there are many poisonous animals or insects.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.