Many people shy away from fostering because they are afraid they will get too attached to the child and then have to send them home to their parents. Would you consider fostering a child? What about a teenager? There is a desperate shortage of foster families for teenagers.
Having worked in the department that finds, trains and allocates foster carers it's something that I have considered and will continue to consider. The time is not right for us at the moment due to a huge number of other commitments as well as 2 young children (and hopefully a few more!).