Mother gets hysterical letting Tesla self drive

He lets his 70 year old mom drive his Tesla Model S in autopilot mode on a 2 lane highway. Her hands are off the wheels and she looks like she is going to have a panic attack, watching the other cars go by in the other lane. I was expecting to see a video about a mom being in love with this new feature while she was knitting a sweater or something, but this screaming seems a reasonable response too lol! Looks like will take some training to get the parents to be comfortable with the Tesla self drive mode.