At 15000, you are making < 138% of the poverty line (https://aspe.hhs.gov/computations-2015-annual-update-hhs-pov...), and are eligible for medicaid, or large subsidies in other states. The details really matter here, and my sense (though I'm very open to correction) is that the people who the ACA is most burdensome for are high enough income that they qualify for smaller subsidies, but still can't afford healthcare.
Depends on your state. Where I live, you can't get medicaid, regardless of income, unless you're elderly or disabled (not sure if low-income parents qualify). Thanks, Republicans.
That's true, but a lot of people (I'd bet it's most in very poor areas) don't know that, and the IRS doesn't send you corrections if you pay tax you didn't need to pay.
This is true, but subsidies are only useful if they are discoverable and truly available.
I grew up in a poor neighborhood, and the only reason I'm not poor is my parents were both educated and made sure I was too. But I know a lot of people who were poor and uneducated.
You might be able to take time off between the hours of 9AM and 5PM to apply for programs in person, or have time to fill out a lot of forms, or know what programs are available, or speak/read the language that's on the forms fluently, but a lot of people don't.