While foster children need support, interestingly, the type of support is less important than the sustained nature of that support (Barno et al., 2015). So, it is important to remember that any support you give a child in foster care can be significant no matter how small or imperfect you may think that help is.
Barnow, B. S., Buck, A. , O'Brien, K. , Pecora, P. , Ellis, M. L. and Steiner, E. (2015), Effective services for youth in foster care. Child & Family Social Work, 20: 159-170. doi:10.1111/cfs.12063