I think you are hand-picking numbers here. The most current CDC Report on Intimate Partner Violence does not support your claims. https://www.cdc.gov/nisvs/documentation/NISVSReportonIPV_2022.pdf

I can recommend the movie “the man from earth” on the topic. I think he switches identities every 20 years or so…

I actually see street cleaning teams here in Germany regularly where one person blows the dirt out from bike racks and from under parked cars and the other person sits in the big street sweeper to pick up the dirt. I think this is a very valid use for blowers. The blowers are electric, but I sure would.not mind them a bit more quiet.

Here’s the thing: people don’t make decision based on cost, but on what they feel what the cost is. For example: there are studies showing people underestimate the cost of car ownership by a factor of 2. They typically forget about the loss in value and the repair costs. Parking fees (if taken per occasion) are cost that people actually feel every day, making it more likely that they factor into their decision, maybe even more so than fuel costs.