Not everyone rides bicycles for a living.
Everyone is different.
Kids, for example, pick up/learn new skills quickly... in general.
I'm certainly not a kid, but I had no problem learning how to ride
my recumbent bicycle.
I used to ride motorcycles daily, as my job, so my skills as a test-rider
may have influenced my personal learning curve.
So, Mr. C, I disagree with you.
Recumbent bicycles are not, in my experience, "much harder to ride."
Recumbent bicycles are merely different... neither more nor less difficult to ride.
Now, as Mr. delcrossv so eloquently suggests, I'm oughtta here, "lightened-up"
-and riding my bike!