Do we think these work in general? Or if not, what are the downfalls?
I've been thinking about this since I had my own DC 2 years ago. I have step children as well.
I know that I don't feel remotely the same about my step children as I do my child, in fact id struggle to say I loved them at all. I do like them, and I enjoy seeing them with our child whom they are very good with but I don't really feel any sort of bond with them and I acknowledge now that life would be much easier if we didn't have to contend with multiple children, some of whom aren't here all the time and everything that brings, along with exes and changing schedules etc..
Knowing what I know now I just don't feel I'd ever want my child growing up on that side of a blended family (being the one with step parents and moving between homes) and that's coming from me as a step parent and knowing how I feel. Obviously it wouldn't be my choice, just musing aloud.
What's our feelings on blended families and the children involved? There are lots of times where I can see the negatives for BOTH sets of children, step children and joint children.