Everyone was clowning on Lord Kuri for living in his mother's basement for 40 years (he definitely had children and family to raise tho) but Shanks just wanted to fk around with Buggy on the seas for life and do nothing of importance
-gave up his captain's hopes for him, put it all on the next gen before he peaked his prime
-went to Mary geoise land of gods then left for the lower world
-maintained balance for years as a yonko without any real ambition or clear goal
-left Makino and his kid to buy cigarettes for Beckmann so family is out of question
-Even Shamrock seems to have more ambition than Shanks does
This just proves that CoC is a ponzi scheme (ambition / personality doesn't matter) and it's all about genetics. Those Garling genes do be damn strong