I carry mine in a pocket while traveling to and from my no-carry work site, and have no qualms with it.
That being said, it's a little too small for me to carry on the belt; just not enough grip to grab, so my non-working carry gun is something I can get more purchase on, and it's usually a PF9.
I don't have a definition figured out yet of "minimum requirements." Any gun you carry will be "enough", or "more than enough", unless it becomes "not enough."