What can a robot do for you?

Answer 1

A robotic device can do whatever it's designed to do. There are robotic devices that are designed to paint vehicles in an automobile manufacturing facility, and those robotic devices simply paint vehicles.

There are robotic devices that are used to cut metal shapes and others that are designed to cut wooden shapes. There are robotic devices that are used to laser etch, and others that are designed to carve shapes.

So far, there are no true "general purpose" robotic devices.