Given the lifestyle of most, the average person apparently does not have enough hours in the day to LCF... at least, the average productively employed individual who is trying to earn enough during his or her highest earning years to plan for a comfortable retirement.

According to the U.S. Department of Transportation Federal Highway Administration (FHWA), the average American driver logs 13,476 miles each year.

and,

For cyclists in Copenhagen, the average cycling speed is 15.5 km/h (9.6 mph). On a racing bicycle, a reasonably fit rider can ride at 40 km/h (25 mph) on flat ground for short periods.

That works out to ~117 hrs/month on the bike or ~4 hrs./day