Personally I think a big reason disposable cameras are having a resurgence is that the camera makers have abandoned the compact camera market and don't seem to

Personally I think a big reason disposable cameras are having a resurgence is that the camera makers have abandoned the compact camera market and don't seem to be interested in making or marketing any camera they can't sell for at least $1,000. That much money can buy a lot of film. For anyone willing to put in even the slightest effort to learn the basics of photography, picking up an inexpensive used film camera will be much better than a disposable or the "reusable disposable" super-cheap new film cameras available now. I have several 40–50 year old film cameras that continue to work just fine, and it's a pleasure to own a physical object that continues to function perfectly for decades, in stark contrast to disposable products and the planned obsolescence of virtually everything you can buy today. Further, the UI/UX of most digital cameras is horrible, with dozens of confusing settings. It's much easier to use an all manual camera like (for example) a Pentax K1000 and set everything yourself than to figure out how to make a digital camera's dozens of settings and automatic functions do what you want them to. Most new DSLRs and mirrorless cameras have user manuals approaching 900 pages!