It is so nice when your teenagers turn into young adults...the whole mother daughter dynamic changes. You become friends...a luxury that isn't always possible while they are struggling through adolescence. Your opinion and advice suddenly makes more sense...you aren't just trying to spoil their fun...and things aren't as different now-a-days as they thought. Plus if you're really lucky they give you beautiful grandbabies.
If you have children in that tween age, hang in there...it's worth the wait.