Fifty years old, uncle or uncle?

50 years old, of course, call you uncle. At this time, if you are a teenager aged 20 or under, you can call your uncle. If you are over 30 years old, you can call him big brother at this time, because if you think so, you will feel more intimate. If you are called uncle, you will have a certain sense of distance. After all, there is a generation gap between you.