Lamb is a very young sheep, so I guess those will not have much wool before being slaughtered? Anecdotally, I have Dutch family that kept sheep for a long time

Lamb is a very young sheep, so I guess those will not have much wool before being slaughtered? Anecdotally, I have Dutch family that kept sheep for a long time. They said the cost of shaving off the wool is often higher than the value of the wool.