For those that spent their adult lives carrying, their choice will likely be the one they are most comfortable with, often the weapon they were either assigned or limited to.
For those of us who came to carry late, it starts at the LGS counter, getting advice and handling the suggested, and then at the range, finding what weapon points most instinctively and hit center best, and a few things become clear to the novice through this process.
Carrying EDC for the first time, besides requiring a good belt, is much like selecting what sized tumor you would like attached to your body, and where.
If you were not teethed on the 1911 manual of arms..good luck.
Shooting a J-frame, especially an alloy one, accurately and with fast enough reloads is a slow learning process that is frankly a struggle for most novices.
Pocket carry for the newbie is best done with either DOA or MS.
There are good reasons why the latest generation of micro 9's are such a hit, they are highly compact, have excellent ergonomics, are accurate, easy to carry, and can be reloaded effortlessly. Which for someone relatively new to EDC, checks all the box's.