The 1911 design is excellent, I however do not think it is the best for someone just starting out, unless you are planning on taking some training so that using it comes almost second nature.
You have to remember that if a break in occurs, you are going to be under extreme stress. If you rack a round into the chamber and don't pull the slide all the way to the rear then release, the gun could possibly jam. It may have insufficient energy to chamber then lock into battery, which will cause a fail to fire.
Then there's fact that if you chamber a round, that round is going to be single action and if you are shaking and not paying attention to where your finger is in proximity to the trigger, could could end up accidentally firing a round.
Have you considered a handgun that's first round is double action? Less chance for an accidental discharge due to the added force necessary to fire the first shot. You can still cock the gun at the range for sighting in.
Or if you pick H&K USP you can change it to single action, cocked and locked.(like the 1911 design) Or leave it like a typical DA/SA.