An everyday carry pouch is popular because it offers convenience.
More people are turning to minimalism, and it calls for convenience, lightweight, and stylish means of carrying stuff.'
An EDC pouch offers you all three.
Furthermore, EDC pouches are discrete and help to organize your items. Suitable EDC pouches have compartments and divisions for various things.
This keeps you organized and stops you from awkwardly rummaging through your bag each time you need your phone.