With android kitkat (in my Moto g1), i could share my wi-fi via mobile hotspot. After upgrading to lollipop, turning on hotspot would turn off the Wi-fi which i thought was a bug.
Now to my surprise, it is happening in my new Moto G4 plus (marshmallow). If this is a feature, then i do not understand why it behaves like that. Is there a way i can share my wi-fi via mobile hotspot ? Sharing the 3G data does not make any sense to me.