Why we need the 2nd Amendment

Of course there's more of a threat of violence if you have more people carrying. I don't think it matters much who instigates a situation if it ends up with someone needlessly shot. Look at the woman in your latest example. Why did she draw her weapon and point it at someone? What once would have been nothing but a shouting match now escalated to a possible shooting, all because this woman decided to be a tough guy and draw down on someone with whom she was arguing.

As to little davey's assertion that this woman underwent some kind of training I can assure you there's no such requirement. It's ridiculously easy to get a CCL, at least here in PA.

You must fill out this one page form:

www.phila.gov/media/20170828145656/LTC_APP_080117.pdf

You must get a passport photo taken, cost ~ 8.00 if I remember right...

You must pay the city a fee of 20.00.

Then you must visit the place of issuance twice, once to apply and once to pick up your permit. Similar to a visit to the DMV, lots of waiting.

When you apply you undergo a brief interview where they ask you why you want the permit and then you go away and wait ~30 days. You get a letter and go pick up your permit. Good for 5 years.

No training, no questions about gun handling experience, no vetting other than a background check to see if you're wanted somewhere for something. 

So yeah, there will be more problems in the future due to people having CCL's that shouldn't have such a permit.