You cant tell me what they should be paid, and I can tell you they are paid a competitive wage based upon their skill set.
Thats the end of this thread.
The wages they are paid take into account what Target/Costco/Kmart and other competitors are paying their employees for the work they perform and the return walmart sees on their investment in those employees and the goods they sell. (AKA ECON 101)
There is no reason to move the line UP unless the employer feels the need to do so (because they own those jobs). They will pay more if they feel like:
Attracting BETTER candidates
Its not cost prohibitive
There isnt legions of uneducated 20 year olds waiting to take that job
You cant argue from a position of strength when a 17 year old can walk in and take your job from you. you are replaceable. Youre goal should be to make yourself irreplaceable (through skill set).
Raising the minimum wage doesnt make their lives better it makes it WORSE. You diminish their buying power (which you keep ignoring). The argument could be made that we should be trying to help them into better jobs through training, but I suspect most of them want $40,000 a year jobs on $20,000 a year training.