Since I started driving with my learners permit, my sister has been getting mad at me for signaling when I exit a roundabout. I say it is polite and courteous so people can enter the roundabout quicker and move traffic faster. She says it could cause an accident if someone put on their signal, didnt turn and somebody got in a crash who pulled out. She also said there is no law that says you have which there is but she hasn't read up on a handbook in 8 years. If you know the current laws for utah that would be great. Thanks