My daughter got a phone in 4th grade. She only got it on days where she was walking home from school and no one would be home for an hour or so. But we took the phone back when an adult got home, and she never had it when not home alone (we have no home phone, and it allowed us to call her, and her to call us if needed).
I’m sure her friends told their parents that she had a phone, and it was sorta true, but she only had it about one day every two weeks.