There's no "should" when it comes to armpit hair at 14. Everyone develops at their own pace! Some 14-year-olds might have a lot of armpit hair, some might have a little, and some might have none at all. It's all perfectly normal.
The development of body hair is tied to puberty, which starts at different times for different people. Don't worry if you have more or less than your friends. It's just part of growing up.
