There won't be any robots in our or your children's lifetimes. The technology is too difficult. It depends if your thinking about an android like robot such as "Data" from "Star Trek the next Generation" or just some mechanical rolling thing that you can control with a remote. It took engineers over 40 years just to perfect the prosthetics used for legs on amputees. To create a walking, possible intelligent robot is 100 years or more away!
