Here's why:
* Spelling is a learned skill. It's like any other skill, like playing the piano or riding a bike. Some people learn it faster than others, but with practice and attention, most people can learn to spell correctly.
* Good spelling is a sign of attention to detail. People who spell well usually pay attention to details in other aspects of their life as well.
* Poor spelling can be a sign of other issues. For example, someone might have a learning disability that makes spelling difficult, or they might not have had access to quality education.
It's important to remember:
* Everyone makes mistakes. Even people who are considered "good spellers" make mistakes sometimes.
* There's no one-to-one correlation between intelligence and spelling ability. Someone can be very intelligent and still struggle with spelling, and vice versa.
Ultimately, good spelling is a sign of good communication skills, which are important in many areas of life. But it's not a guarantee of intelligence, and poor spelling doesn't necessarily mean someone is not smart.