When I got my FP3, I needed a new USBC cable as I was upgrading from a Galaxy S5. To be honest, my (now broken) Galaxy S5 still has its original charger in the box, since I reused my S4 charger for it.
Nowadays though it should be pretty common for people jumping to an FP or other USBC device to at least have an existing USBC cable kicking around I think