Just curious about this subject and what other people do.
If your child's other parent has another child(ren), so your children's half sibling, what involvement have you had if any?
I.e. have you met them? Do you say hello/talk at pick up or drop off? Have you ever had them round to your house for anything, say a birthday party for your DC or whatever?
If you don't have any interaction do you find it strange that your child(ren) have a sibling(s) you don't know?
I don't think there is any right or wrong answer btw and I'm sure a lot of this will depend on the relationships between everyone involved. I'm genuinely just curious as to what other people's situations are like in this scenario smile