When it comes to a matter of choice, the human instinct is to go for the best, the biggest and the most beneficial.
Using our logical judgement, we would certainly choose the obvious.
The human instinct is oriented towards winning and gaining, and no one would really choose to be a loser.
In the 1st reading, we see that instinct in Lot as he chose what he thought was better.
At the same time, we could also see the humility of Abram as he let Lot make the first choice.
Being the elder, Abram could have demanded that he chooses first, but by letting the younger and junior Lot have it first, we could see the character of Abram.
More than that, Abram’s faith in God’s blessings is admirable.
And God’s blessings are bestowed on those who walk in the ways of humility, simplicity and charity.
It may mean walking by the narrow path and entering by the narrow gate.
But as Jesus said in the gospel, it is a narrow gate and a hard road that leads to life.