In 2011, the Federal Poverty Level for a family of four is $22,350. When SHC was younger, I'm sure it was much lower. So at her mom's pathetically low $25,000/year, her family was ABOVE the poverty level...
I just don't think that some of the people here understand the intricacies of real life, when you have to pay for food, healthcare, shelter, daycare, bills, debt, etc., without a family to fall back on. My husband was laid off at the end of 2008 (when our daughter was only 4 months old). I had insurance through my school, which included NO Rx benefits, and was only covered at a low cost if you went to the student health center. Well, I went to a Satellite campus - the student health center was ~250 miles away! Still, I made do, stretching my meds as I could and being creative about getting healthcare.
For over 8 months we tried to keep our daughter on my husband's individual health insurance (itself over $250/month for high-deductible coverage; my daughter's insurance was another $120/month). When student loans (which I maxed) and extra work hours for me (during rotations) just weren't enough to cover this, we applied for Medicaid for our daughter (1 years old at that point). When I explained our situation and provided financial documents, I was actually scolded by the case worker for not applying earlier, because we had met the requirements for so long. Luckily my daughter has been healthy (and this should be noted - it's very rare for kids to only see their pediatrician at their regular checkups), and during the entire time we were on Medicaid, we only used it a few times for routine visits.
After almost a year of looking my husband found another job, at ~60% of his earlier pay. Yes, he took unemployment during this time, but it was ~$250/week, which I dare you to pay for a family of three with medical bills, pharmacy school tuition, etc.
My situation is far from atypical. Are there medicaid "lifers?" Yes. But a vast majority of people who have the ability to get off of government support get off of it eventually, and I don't think I'd be exaggerating by saying that most of them are very thankful for the service and willing to support it once their incomes rise enough to be taxed for it.