@knorvy10 There is certainly not a problem. Little boys and girls should see diapers being changed. In fact, it is probably best that kids who are blessed with an opposite-gender sibling see their diapers being changed, be bathed together, or otherwise be around with the other is being bathed. They should get used to seeing the other gender's genitalia when they are too young to think about sexual things. That way they will not think of genitalia as sexual objects. If he sees his little sister being changed he will more likely think of a vulva not as a sex organ but as a place where poop accumulates.
When I was young I "helped" my mom change my little brother, and I understand that when I was in diapers my older brother helped change my diapers. Even when I was older I had no problem with a brother coming into the bathroom when I was bathing, and they had no problem with me coming in when they were naked.
I am a nurse and I have trained young student nurses (male and female). It is not a scientific survey, but it was my impression that students with an opposite-gender sibling were more able to adjust to doing things like bathing the other gender "down there."
When I was young I "helped" my mom change my little brother, and I understand that when I was in diapers my older brother helped change my diapers. Even when I was older I had no problem with a brother coming into the bathroom when I was bathing, and they had no problem with me coming in when they were naked.
I am a nurse and I have trained young student nurses (male and female). It is not a scientific survey, but it was my impression that students with an opposite-gender sibling were more able to adjust to doing things like bathing the other gender "down there."