Sorry that you had that accident, but I appreciate your post about the
protection afforded by wearing your cycling gloves. I always wear
cycling gloves, both for an anticipated safety advantage and the
additional cushioning effect from the handlebars.
I think one of the situations that is often neglected in bicycle
safety is that accidents sufficient to cause injury don't have to
occur at higher speeds. As you've noted, the speed you were traveling
was "only" about 6 mph. Falling from a bicycle, even at almost a
standing speed can certainly cause injury and it doesn't take much
speed to amplify the forces involved in any fall.
They're called accidents for a reason, you can't necessarily avoid
them and the consequences can be serious. Personal safety should
always be a consideration when riding, and any reasonable actions
possible to ameliorate injury should be taken seriously.
"Signing off the soapbox"
Jim Cloud
Tucson, AZ