I am asking you one question "who tells you this is wrong". Is it your feeling or some groups some religion tells this is wrong.
Ofcourse this is told by some one else , it is not "your" guts feelings.
a child whose age is about 6 to 7 he do not eat chilly ,he do not punch on the wall,why becouse it is his own guts feelings, this is wrong. So stop thinking wrong or right only think is it your feelings of not.