In my years of constant flying to & from Asia (in the back of the plane) I befriended a number of crew over time. I still keep in touch with a few and worry about their health and financial future. In the US it's not uncommon for people to set up a GoFundMe page for crushing medical debt and I would not hesitate to chip in to help a PPL or FA who finds themselves on the brink due to evaporating job or infection.