There are upsides and downsides to it...
First, not everyone is cut out for being on two wheels, even at the tame levels of riding the street demands. Some people just do not and will not have the skills to do it safely.
However, if there are more bikes on the road, one could hope that cager awareness of bikes would increase.
On the other hand, if there are more riders, there may be more riders doing wheelies and other stupid shit and furthering the stereotypes already in place.
I guess...