Oldest Getting Driver's License

My stepdaughter is getting her driver's license in a couple weeks.  She's actually a couple years late getting it.  In fact, her little brother is in driver's training right now too.  I don't know if she took her time getting it due to her schedule or fear (anxiety, OCD). 

She doesn't live near us so my car is safe from a teenaged driver thankfully.  Otherwise I'd be looking for the best anti wrinkle cream because I know my nerves would be shot knowing when one of our kids was on the road. My oldest is 13 so I have a couple years before I need to worry personally.  I know I will worry too.  The thought of my kids being teenage drivers, knowing some of the things I did as a teenage driver, scares me.