Rookie user here. I have absolutely no interest in laps. Just want the averages to be computed on a ride by ride basis. How do I turned off the (cursed) lap counter?
The averages are calculated for the entire ride and for each and every lap. You don't need to do anything and all of the fields in the activity details page are calculated for the entire ride (Distance, Time, Moving Time, Elapsed Time, Average Pace, Average Moving Pace, Best Pace, Elevation Gain, Elevation Loss, Min Elevation, Max Elevation, Average Heart Rate, Max Heart Rate, ...)
If you really feel the need to avoid lap creation, find the manual for your device and read about the Auto Lap feature. Find it and disable it, and then just don't touch the lap button during your activities.