Every state in the US has a safe-haven law on the books. You can drop a baby off at nearly any firestation, sometimes in completely anonymous baby boxes, and absolve yourself of responsibility. It's literally easier to get rid of a child than it is student loan debt.

Aging parents aren't your responsibility (if they are, there's something deeply wrong with how they lived their lives).

I don't agree with this at all. People have problems and need help all the time without it being all their fault. If they didn't, there would be almost no homeless people, maybe zero.

This world view is very self-centered, and also inconsistent.

Inconsistent: Your argument is essentially, "you can abandon your aging parents, but you can't abandon a child." False. If you're okay with abandoning aging parents, why not leave a child up for adoption? Both are, quite frankly, gross concepts

Self-centered: Humans are social creatures, and part of being social is community. And I mean IRL community. For many that community include immediate and extended family. For others, it's found family. Either way, yes, a person can "walk away", and there are consequences. Also, I'm taking care of my mom. She's 85. If I abandon her, she'll be put in a home, and all of her things become property of the state. So, to a degree, she is my responsibility, as well as my other siblings. If we abandon her, her community will help, but not to the degree that she could maintain her independence and quality of life. And it would break her heart. Is there something wrong with how she lived her life?

I can't tell if you're just young, or very socially isolated, or both. Yes children bog a person down, shackle them to a way of life that allows the child to (hopefully) thrive. So do other things. If a person is so isolated they can pull up stakes and go with a snap of their fingers that person is deeply wrong with how their living their life.