That's what I was saying too - by "don't work" I meant "don't mesh with the family's goals, priorities, and other restrictions" not "fails even when followed to the letter". To use a close friend as an example - she's a teacher married to a teacher. Between undergrad and masters degrees they had about 150K worth of student loans between them when they met. I'm sure they could have paid it all off much more quickly if they had opted for a justice of the peace instead of a wedding, didn't buy their modest house, postponed having children (though they were already in their mid-30s when they started a family), etc. But DR's plan didn't work for them, not because it fails when followed but because following it means making being debt free the most important thing in life and they weren't willing to do that. And you know what, there's nothing wrong with that! They are on track to pay off the student loans with enough time left to pay off the mortgage before the kids start college, freeing up a great deal of cash-flow ability to help the kids reach adulthood without so much debt already weighing them down, and they've managed to do it while vacationing and enjoying life at the same time.
$75K in loans for a teaching job was the problem. The earning potential for a teacher is not high enough, even in the past, to hand this large of a loan value. I am not sure exactly how old they are, but since you said mid-30s when they started their families, they could be early 40s. That was a huge amount of loans when they went. I am a little more than 10 year older than they are and DH's and mine loans combined were $21K. Neither of our parents paid anything toward our educations. Both of our degrees cost a little more than $50K combined. Where did they go to college?
Living beyond one's means is a very bad idea. No one is saying "make the minimum payments and charge the trip". The OP presented a situation where they can afford to save for the trip by cutting back on the extra payments they're making, or they can continue making those extra payments but add debt for the trip. There is flexibility there that suggests to me that the trip is within their current means regardless of whatever past situation led to the debt, and if you recall I did ask a few other questions for clarification (like is there an emergency fund so a future crisis won't go straight to the credit cards and are their jobs stable).
You really read much into that one sentence. Paying off debt could mean paying the payments and nothing more or it could mean paying many times the minimum payment. Only the OP knows and will not tell. I believe the OP may be trolling.
As far as what we do or don't do, that's just an acknowledgement of our circumstances. For virtually all my married life we've lived on a single, variable, and frequently unstable income. As such my comfort level for my own finances if very different than it was when we had dual incomes with mine being as dependable as the tide, at which point I was far less debt-adverse. Now I do border on obsessive about keeping our monthly obligations to a minimum; even with little things like cell phones and cable service, contracts give me hives. I want to be able to cancel the luxuries and save those payments should we hit an unusually long bad patch.