Agreed.
After speaking to the artist that did my tattoo I would only go to a licensed piercer.
He told me that the biggest and most important difference between a licensed piercer and the "mall" places is that piercers use hollow surgical needles. This actually takes a chunk of skin out to make the hole. This cause much less infection than the mall guns that shove the sharp pointy edge of the earring back through your ear.
Second, licensed piercers are just that. Trained and held accountable for sanitary standards and practices, even correct and even placement of the piercings. Btw, most piercers use a high quality stainless steel earring for the initial healing time. You definitely would not want to bring your own posts (as OP stated in the post above this one.) Yours would not be sanitary and a place like Claire's in the mall has no autoclave to clean it for you. Wiping it down with an alcohol type solution is not sufficient, especially for the first piercing. Remember, a piercing is a wound and the hole is a scar. Should be treated as such.
About me, I got my ears pierced at age 3 in a mall. Placement was uneven. I worked in Claire's in college. No training to pierce ears. Just put the dot on the ears and hope you line the gun with the earring and shoot.
If my daughter ever wants her ears pierced, I'll take her to a piercing shop.