Kant is the name of a person who was involved in the education and psychology field. His last name was hard to pronounce and many people pronounce it like the contraction can’t. However his last name is pronounced like a short of “o” sound. Usually people don’t pronounce it correctly unless they have heard it before. The last part of his name is usually pronounced the same way when it is an ending for other words.
That is why so many people mispronounce his name. Most likely he was born in another country and that is common for this type of pronunciation. Once you know how to pronounce his name, it is easy to remember because so many people get it wrong. They have a tendency to remember how to pronounce it later.