why we do this stuff!

For me, it's not an issue now.  I'll tell you, my big wake up call that some do hide away was when I tried to start a group, From Fat to Fit.  The idea was that it was especially for folks with 50+ lbs to lose who weren't getting out for fear of being the biggest, slowest, etc.  Anyway, people showed a lot of interest by signing up, but few ever attended the events I scheduled.  What a shame.  I can only control myself and that will not be me.