Sheila was stuck in a flat with those babies too. I know it was a luxury flat in a mansion block, but it wasn't as though she could put them outside in the fresh air and sit with them for a while or get on with housework.
There was a communal garden, which was fenced, I believe, opposite the mansion block. Sheila's friends told Claire Powell that Sheila would take the boys to the park to find someone to talk to, because she was all alone in the flat and babies are not really company for a young woman. Sheila's friends said they found her to be a very needy person, she was desperate to talk and wanted her friends to guide her, almost as though she saw them as proxy mothers.