You'd have to ask them..
Probably about as much as this 2 year old:
They certainly can experience all the joy, but have yet to learn about the commitment part.
Nothing because if they are experiencing it, it's mostly likely for the first time... but assuming the other person feels the same way, then lucky them, but if they don't which was my experience then it's the most horrible feeling ever.
I loved being sixteen years old. The best time of my life.
They know who they think they love, just like many far older people do.
They know enough that they don't have to go on the internet to ask about it or find it.
Hi, Blue! I love you already. Can we dance now, slowly, holding each other like fish do? ;o)
When you're 16 it's more about getting in someone's pants, that or being overdramatic, either way 16 year old dont know love
More than some middle aged geezers