Luckily I live in a country with a Good Samaritan law, so can't be prosecuted for any of those complications but I probably would be if I refused to try, given my career.
Up to now there has been no requirements for me to put my training into practice outside a hospital. The only road accident I came across where I might have had to do something involving resus didn't ,as the casualty, a m'bike rider, was literally headless.