It depends on Child Safety, and the organisation they refer to that has capacity to take kids on. Residential Homes are usually used for more 'challenging' kids or emergency placements. Foster Homes can also be good (when the family is normal) as it can create a family atmosphere and kids who are not used to 'normal' family interactions ~ can see what healthy families look like.
Children in foster care ‘still being sexually and physically abused by their foster parents’
CHILDREN in foster care are still being sexually and physically abused by their foster parents, a high-ranking official in the Department of Family and Community Services has revealed today.
http://www.dailytelegraph.com.au/ne...k=cd952fbfc49a83e955a7e27ea241315e-1474714340
Article is a couple of years old, so problems back then too.