Yes OP, there's a massive difference I feel between posts and situations such as
He has children, she doesn't
He has children, she has children
He has children, she doesn't, they have one together
He has children, she has children, they have one together
Add into this some that live part time, full time, split time, and no two peoples situations are going to be the same - and some are bloody hard work compared to others.
I come from step families with both sides having children and no new ones created - and as teenagers it was shit
DP comes from a family that had step sibling that was never seen, new children came together, and it was ok but there are moments with full siblings and half siblings
My children and his are from a mix
It's why we have decided no more children. It would just make it too hard for us.