Lived vs Lived out

I am writing the backstory of my character in my short story. I can't figure out which to use between these two and what the difference is between them. Please help.

Marcus lived his entire childhood with his father in Hanover, MN.

or

Marcus lived out his entire childhood with his father in Hanover, MN.

Solution 1:

Lived is just fine.

Lived out is used more appropriately when the end of a person's life is in view.

He lived out (the final years of) his life in quiet retirement.

Lived out could also be used in place of to do or to experience, as in

He has finally had the chance to live out his dreams/fantasies.