I commute with my girls in the morning and afternoon... they are the best riding companions. We book it in the morning so there is less time for chat but after school we pootle along and the girls tell me about their day and I rant about bad drivers...
At most other times it is just me, my bike, and homicidal soccer moms keeping me busy.
My loooong commute is 50 km of highway... never see another cyclist out there unless I am riding on the weekend as it is a popular area for local racers to train.