That's because where you live likes to make people wait and sit at left turn lanes when there's 0 oncoming traffic. This is the perfect intersection, and I missed them from Arizona. You can turn if it's safe, but if it's busy and there's no safe time, you'll eventually get a protected left.

You know how to turn at an unprotected left, right? That's in the drivers manual. You know how to turn at a protected left as well. This is just both at the same intersection. It's really not that complicated