Take the time to support her decision to date. Make sure she knows she can come to you no matter what choices she makes. Also make sure she knows the safest ways to go further in relationships. Knowledge and love is key in a safe upbringing.
not necessarily, keep an eye on who she is dating and how she is acting but if she is not running around trying to be alone with him all the time you have no worries. Kids are smart, especially if you raised her right!