Should All New Mountain Bikers Start Riding on a Hardtail?

Some have argued that key mountain bike handling skills are gained by starting out on a hardtail.

Many mountain bikers learn to ride on a hardtail, though that’s mostly driven by budget rather than intention. Still, some argue key bike handling skills are gained through the rough and tumble of a rigid rear end.

Bonus question for the comments: Was your first mountain bike a hardtail or full suspension? Do you wish you started out riding something else?