Youth are easier to get more work out of than the value they will get in return. By 40 you have less tolerance for BS, can better judge if a venture will succe

Youth are easier to get more work out of than the value they will get in return. By 40 you have less tolerance for BS, can better judge if a venture will succeed, and when the risk/reward no longer make sense to continue. Some would call it higher risk tolerance, others might say its risk ignorance.