Our niece turned 15 today. She is the oldest niece (and only) on my husband’s side of the family. It feels like she went from a sparkly eyed, little four year old to a beautiful 15 year old (who outgrew me years ago) in mere days! How does this happen so quick? How do the days – that can seem so very long – turn into years so quickly? I remember a time, before kids, when I never could have understood that a birthday really means more to the parents than it ever does to the kid! But as soon as you have your own, you get it. Every birthday…