I'm curious as to how many problems rats really cause in a modern city. I live in a lightly forested area and have once or twice had to scare various rodents out of the attic and patch up a small hole they made, but that's about the worst they've ever done to me. One time I turned on the porch light at night and saw a very long-tailed rat nonchalantly eating from the bird feeder, which was fun to watch.
A quick Google search suggests that there are millions of rats living in New York City and Los Angeles, but I don't recall hearing about any recent catastrophies they've caused. I guess it's possible they could someday transmit a new novel disease like bats did, so we probably don't wanna let their numbers get too high, but other than that, are they really hurting anything? I view them about the same as pigeons or moths; occasionally annoying, but not something to relentlessly eradicate.
A quick Google search suggests that there are millions of rats living in New York City and Los Angeles, but I don't recall hearing about any recent catastrophies they've caused. I guess it's possible they could someday transmit a new novel disease like bats did, so we probably don't wanna let their numbers get too high, but other than that, are they really hurting anything? I view them about the same as pigeons or moths; occasionally annoying, but not something to relentlessly eradicate.