The first rule of Flexbox is if you talk too much about flexbox then people will think you cannot create anything without flexbox, nay, you cannot exist without flexbox.

This has already come to pass where I see the script kiddies of reddit think every solution to every problem resides with flex.

I have no problems with flex, myself, but I am in no rush to start using it. Not being in a rush to use it says something. It means you don’t need it to accomplish the same task with other CSS properties.