Unfortunately, it is not uncommon to have more than one type of hair on your head, especially if you your hair is lighter colored.  (Asian hair is one exception to this).

Not having any split ends is excellent.  Your "outcasts" may diminish as you get a little older, but they will most likely come back again.  As your hormones change, your hair will also change.  Sometimes having a baby will cause straight hair to become curly/wavy or wavy hair to become straight!

Be gentle with your hair and it will look great.