plainjayne I agree that with the correct training and support foster carers can indeed make positive changes to their placements, and that that is a very worthy reward to both that child and the carer themselves.... but to a natural born child? No, I would still say its not worth it.
bonnie to be fair, my parents had had 20 years fostering experience before I was even born, so they were placed with the more difficult and challenging children as they were more experienced. We had between 2 and 6 children at any time, both through the local FA and then later long term through a private charity. My parents were always around. But, if a child wants to steal / hit / rape (as happened in our house) then they will find a way. For example, we lived in a large 3 story house. We had a girls floor and a boys floor, and we weren't allowed on the opposite sex's floor unless for a reason, and def not at bedtimes etc. So the abuse took place a lot of the time on the stairs. You cannot watch everybody, all of the time.
Moel I def don't want to imply that "foster kids do 'bad' things and biological kids are angels" What I'm trying to say is that by virtue of the fact a child needs fostering, means they have suffered at best a trauma (mum being ill, no back up for eg) and at worst serious abuse over many years. Those issues take time and attention to resolve, there may be acting out - which is a natural expression of hurt / frustration / confusion, and your child will be exposed, or bearing the brunt of that. There is no right or wrong behaviour, just damaged children who need help and are exploring that in a space which sadly over laps with other children.
Sadly, I don't think mine or rhubarbs experience are rare. I am vocal in the fact that I truly don't believe you should be able to foster if you have young children yourself.
You may foster 20 children, and 19 of those placements will be a success, but that one time it goes wrong, the consequences can be catastrophic, and if you are happy to take those odds, that is fine - but the more you foster, the more exposure your children have to the outside elements myself and rhubarb have illustrated above. It's a game of diminishing odds.