You've just contradicted yourself by saying don't shoot close and also that distance isn't important. The professionals (and I have benefited from it) say start close, build confidence, move back.
That was before my coffee kicked in.

What I was trying to do is point out the problems that will occur if you start shooting at a close distance when you are first learning to shoot a handgun.
If you apply the basics of shooting a handgun (grip,sight picture, trigger control/ follow through), it won't matter what distance you shoot at. Although when you are back at 25-50 yards then other factors will come into play regarding your group.
That is why I suggested 15 yards. Not close enough for you to see where your rounds are hitting and cause you to stare at the target and not far enough away that bullet drop or poor trigger control, grip etc will cause you to miss paper completely.
I've been an small arms instructor for going on 15 years and it's provided me with the opportunity to observe a lot of shooters and what works and what doesn't.
Our recert course of fire starts at 7 yards and every time I run the course there is at least 1 shooter that stares at the target instead of their front sight because they can see where their rounds are hitting. So instead of applying the above mentioned principles, they use "Kentucky windage" to try and hit the x ring.
That is one thing a lot of people have a hard time getting their head around...the purpose of applying the "marksmanship principles" is to shoot a tight group consistently, not shoot the center out of the target.
Once you can shoot tight groups consistently in the same spot on the target, then you adjust the sights to bring the MPI onto the x ring.