I can't believe this thread even started...
To the OP. You certainly CAN play... otherwise you wouldn't be criticizing the buyer. Yet, there YOU are, working at a music store. Which isn't exactly bad and I'd say it's even honorable (vs. not wanting to work), but still... Why aren't you rich and famous? Why aren't you soooo good and savvy that you could afford not to earn pennies at a music store?
I am 50. Started at 46 with a serious hearing impairment. I know I probably have no business trying to learn the bass. But I did it because that seemed to be the only way to connect with my oldest (then teenage) son. I am also VERY sensitive to loud noise, so I finally came to terms with the fact that I can't gig. Sure, I subbed at church, and I could do a passing job for the fairly simple pieces that we played. But I can't follow the changes on the spot because my ears are shot.
Along the way I discovered the joy of music. I have a couple of Squiers (CV J, Affinity V), and also a couple of SX. In these last 4 years and change I have been struggling to learn about things like gain structure, EQ. I thought the bass was an insyrument that you just pluck the strings and the sound is there, but no... I bought a Fender Am Dlx V to 1) get a reference point in terms of sound, and 2) in terms of "American made" craftsmanship, and the Fender didn't disappoint on either aspect. I have been learning just how to make a jazz sound like a jazz since I got the Fender.
You don't know how difficult it is for me to transcribe songs, yet I spend the time and finally can come up with something passable. What I do these days is practice to methods and DVDs, find songs that I like on YouTube, transcribe them, and then try to play along. I also fire BIAB or Jazzradio and try to play along. On Sundays my family and I have family worship services and sometimes my son and I play along. I also decided to pick up the cajon; it should be arriving today.
I am a software engineer but learned a while back that your job today can easily be outsourced tomorrow... That's why I also have ZERO debt. I have worked hard, never defaulted on any loan or financial obligation.
And if I want to spend money in my new hobby, I buy cash or zero-interest and pay it off in a few short months. Without newcomers to music that business is dead.
I wish you (OP) the best. But knowing how you feel about the event you described I wouldn't spend a cent at your store, or anywhere you'd happen to work at.
Booo!!! >:-(