Rant on people and rude money habits

I would be SO embarrassed to owe someone money for a long period of time. I don't like owing people money at all. I am an adult and should be able to take care of myself. I have working arms and working legs and I am fully capable of getting a job. And if I had to get a job that "wasn't me" or wasn't my dream I would do it because I am an adult, and I have responsibilities to myself and other people. I grew up with my family doing the Dave Ramsey plan. We didn't get allowance... we got salary... If we did our chores, we got paid. If we didn't do our chores, we did not get paid. Sounds a little like real life doesn't it?
My husband and I are married young and we are just getting on our feet in the financial world. We have already run into the problem of not having enough credit to get cell phones under our own names... despite him being in the military and having a guaranteed job! We bought our first car together in cash. And when looking to finally buy a second instead of saving up for a car we decided to try and get a loan so that we could actually start building our credit. We were only approved for $500. That was very discouraging. Luckily there was another option. We took out a loan against our own money we had in the bank. So we will be unlocking increments of it as we pay off the "loan". We are finally building some credit.. and doing it in a very responsible way.
Back to other people... to be frank.. they piss me off! Is it just me or is it common sense that if you owe someone money you DO NOT buy yourself expensive unnecessary things. Like for instance when you owe someone $900 DO NOT go buy yourself a brand new HD Video Camera. And when someone takes you into their home for a month, giving you shelter and food and eventually a plane ticket home you DO NOT go buy yourself a tattoo.
So what bothers me the most about this is seeing posts about these things on facebook. I don't need the money. And I really don't expect to ever see any of it. I've excepted that. But the fact is... that it is so rude! I'm honestly embarrassed for these people. Even as a preteen I have felt the embarrassment that they should be feeling, though I am sure they are not considering their excited status'. Within the first week of starting the Dave Ramsey plan with my family I got my salary and spent it. I had also borrowed money from my Nana and she really needed it back. I asked my mom if I could have next months salary early and she said no. My Nana really needed that money and I messed up. So even then I knew how bad it was to owe someone money. I can't imagine being an adult and not even having the knowledge that it is so rude and irresponsible to owe someone money and not do everything in your power to make it right.