Yeah, my little brothers stutter though not too badly and they're still very young. My dad did but grew out of it. My grandad still stutters and is the only one with a severe stutter like mine. There are other stutterers in my extended family even back to my great grandfather. What's more perplexing to me is why some family members don't stutter. Like my grandad's identical twin. Identical twins supposedly have all the same genetic material, and stuttering seems like it's definitely a genetic thing especially in my family, so it's just weird that his twin never stuttered at all.