I know in our case( with our younger fc) it was an instant bond!With F it has been a little harder ,one due to the fact that she WANTS to go home and is having a hard time excepting that she will not.We have her in counseling and it is helping.She is starting to bond with us.
As far as what other people think,well in my opinion(?) WHO CARES??? I stopped caring what people thought a long time ago.YES we get looks and people ask "ARE THEY ALL YOURS??" I just smile and say yes and we want more!After seeing the Duggers I have a small family

LOL.We also get looks because we wear mainly dresses and have longer hair my DH is hispanic I am white we have 4 blond hair blue eyed children and 3 dark hair brown eyed children and 2 blonde hair brown eyed children so they all look like ours we get looks for all kinds of reasons. who cares!!
Just think of it this way- when you have bio children you are "over populating" the world

BUT when you adopt you "are saving and helping these pood children"
That is not how I think but there are so many people that do.
We also homeschool and cant wait until we can take F out of school and teach her at home.Go with your heart.