what if both parents work full time?
  1. Maybe that's not absolutely necessary. Most people never bother to even calculate how much extra money they really have from the second earner.
  2. There are lots of options, other than homeschooling: charters, private schools, zoning exemptions, etc. It might even be as simple as finding a different teacher in the same school.
how exactly would you go about turning these two around?
This is a culture shift, more than something schools should be involved with. My sense is that parents tell their kids to focus on their school work, rather than their friendships or dating. That doesn't need to be reversed, exactly, but kids should be encouraged to treat those relationships and commitments seriously, instead of communicating that they aren't important.
How would you facilitate that?
This one should be pretty easy. Instead of jamming everyone into the same cookie cutter, let kids pursue their interests: This is common in several alternative education systems, like Montessori and unschooling. Then, help them find opportunities to make a living doing those things.
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