Yea I can agree with paying off your debts, because although there are emergency situations, a lot of debt comes out of HABIT. Filing for bankruptcy might discharge the current debt load, but those same habits that got the person in debt in the first place are going to get them into debt again, but the problem is they will be unable to get the loans they need or will be forced to get extremely high interest rates because their credit score is going to be trashed.
Dave's advice is catered to the average American citizen, and I can agree with him that it's better for them to get out of debt first. Why? Cashflow problems and discipline.
Investing in index funds and all of that is great over the long term, but you aren't guaranteed that 10% annual return. You only get a return when you cash out, and that percentage is an average over the long term... so you have to let your money sit and you have to cash out at the right time.
Most people simply do not have the discipline or reserves to just let their money sit in these accounts for decades. What happening more times than not is they might stuff some of their money into that index fund, an unexpected event like the Corona virus happens, somebody loses their job and they need to dip into their savings/investments to keep on paying the bills. Thus, they are stuck with whatever the market is giving them at the current moment, which could very will be them selling at a loss. Also, if you have a high interest loan, like some of these credit cards, you absolutely better pay that off first. If you have a guaranteed 15% to 20% going against you, you are going to forever be in debt if you let that sit around.
I can agree with a more investment heavy approach IF you have low interest loans and you just have huge cash reserves and you can sit tight for a while if you lose your job. Otherwise, people need to focus on paying their stuff off unless they want to get spanked by interest.
In regards to college, it is the correct assumption that it makes ZERO sense taking 100k in debt for a 40k job. I was blessed to have went to community college for my first two years and was able to live at home. People need to stop looking at college as some for sure solution and carefully analyze the reward/risk. If your degree isn't going to aid you in procuring a high income job, then don't waste your time going. All of that nonsense about you go to college to learn how to think is nonsense. You can watch youtube videos and take courses off of udemy and save tens of thousands if you want to do all of that.