My parents have no retirement, savings or equity and it’s stressing me out

I 26M am the oldest of two. I can’t stop thinking about what will happen when my parents (55 and 53) get old and unable to care for themselves.

My dad lost his job in 2008 and was never able to recover, as he’s been in and out of contract jobs since then. My mom started working a few years after that but they offer her no benefits.

They don’t own their house. They don’t have savings or retirement funds. My dad had a health scare a few months ago and it really opened my eyes about how I’m going to be able to care for them when that time comes, and especially while I’m barely supporting myself. I’m in the midst of a career change to provide myself more ample and secure income. And hopefully save enough to not worry or at least buy a house to have the room to care for them. I am so scared for the future.