I have read somewhere that the twins were in foster care (day care) for a period of time, and that it worked out well for all involved. No idea why it didn´t continue. I think I read it in cennection with Colin Cafell, sonmething he said in a statement? Sorry, simply cannot remember.
But because I have read this (and I am 100% positive I have), I have never understood why Bamber-guilters always say that Jeremy made it up that foster care had been discussed that fateful night. The twins already HAD been in foster care, so it is quite probable it was discussed again.