For this reason, every pair of jeans has a littIe pocket within the front pocket…

We have, I assume, been speculating. And despite our best efforts, we were unable to come up with a meaningfuI purpose for this IittIe pocket.
A mobile phone, Iittle banknotes, or other items cannot be kept there since there is insufficient space for them. the keys, too? You’ve got to be joking; getting the key is not feasible for you.