My experience is mostly opposite of yours:
1. Shooting a folk singer, guitar guy in a trendy brick-a-brack store, the pseudo-artsy owner shouted, a Holga! I explained it was an Electro CC, 35mm f1.8 lens... His wife, co-owner, photography major back in the day, jotted down and said she intended to comb eBay...
2. Younger cousin from out of state, very interested in film photography. I gave him my GSN.
3. On the beach the WE before labor day, a guy sitting next to me collected old folders, was in love with my Iskra, amazed that I shoot with it, knew all about it, and was awestruck (seemingly) that he had one in his hand...
4. Lots of Russians come to work at a beach resort town I vaction at. That's when I shoot the Zorki 4K... They all know that one, and love taking picks with it. They're amazed somebody's walking around in the states shooting one...
5. Is that an "old school camera"? Hands curious person my Lynx 14. Cool...
My experiences have always been positive/appreciative...