Same experience as others here. When deciding to get back on the road with a bike, after a 20 year absence, I decided to take the MSF coarse to get my license. I asked my wife if she was interested and to my surprise she was so we took it together. We found out during that coarse that she needed to start out slow. She passed, but barely. She aced the written of coarse, but on the ridding test she made the maximum allowable number of mistakes and still pass. I bought her a GZ250 to start on and on her very first solo ride she dropped it on her self when she pulled back in the yard to park it, and broke her toe. She is now healed from that but having neck issues not related to the bike but she will need to get that healed up before she can ride again. She says she will but I am not sure I really want her to now. Some people are just not cut out for it. We will see.
Anyway, the point being, taking the coarse is a good idea as you can get a good sense how someone can handle riding. You can also get a good sense of what type bike they can handle to start.
2013 Vision Sunset Red - Stage 1 exhaust, VictoryHID Cyclops
2004 Kingpin - Traded