Another Question

Why is it that people find it strange that my brother and I go on dates together? My brother and I are extremely close. Sure we fight and get mad at each other as all siblings do, but at the end of every day we are still very, very close. We do many things together, including going out. I take him on dates and he takes me on dates. Usually a dinner, a movie and perhaps a walk in the park. Why is that strange? Why do people disapprove? It is almost like a person is not supposed to be friends with their brothers or sisters. Like it is normal to not like each other. And if siblings do have feelings for each other, people say it is wrong or inappropriate. Honestly my brother and I are as close as we can be without sex. We do hold hands and we talk and we joke and we spend a lot of time together. I don't think it is wrong. I simply don't understand why people think it is.