Plastic parts have a finite life as normal everyday atmospheric exposure and plastics have a curing period right after they were made. New car smells were finally revealed from the chemical industry descriptions as outgassing, the continual curing of injection molded hot plastic. Great when new but years of uv exposure hastens curing until they become brittle and eventually breaking at unannounced moments. The chemical outgassing are the vapors given off new plastics in our cars, trucks and suvs. Not conducive to human health but was always sold as the new car smell.
A very old Polaroid instant camera has many plastic parts that has a finite life but beware of these plastics drying out over decades then breaking. Even when stored in attics, heat from unventilated attics accelerates plastic drying and becoming brittle.
I noticed snapshots of the Polaroids, presuming you're using either a digital camera or cellphone. Can you print those snapshots with a color printer as another way to create the equivalent of film prints but on paper. Photo quality paper is better too for longer lasting photographs. Even Polaroids fade over time. Digital electronics can duplicate photos with photo quality inks and papers, no different from outdated Polaroid instant film.