I must not care since I bring my phone with me on my rides, and it is telling someone where I am. Guess I could turn it off or remove the sim card but that's a load of work, and if someone wants to find me they can. I am 90% sure I bought vintage Italian iron from a pair of homeless druggies. Dirt in weird places, weird parts, missing wheels,etc. I do appreciate not having to pay the gov't 150 a year for a bike like my motorcycles require.
If I cared about secrecy I would wear my n95/cough mask and/or my construction getup everywhere. It's easy to blend in and not be suspected if you are wearing the right clothes.