Wrt to the temp then yeah maybe a SAHM would need to maintain temp... in the toddler years. Once school years reached I'd say you don't need to keep it that high when it's just you at home and the kids at school... mine are not at school ft when they really should be.
We do go outside in winter, and we have to deal with the meltdowns accordingly. Having to do that more than strictly necessary would be unbearably stressful.
Light, in our case yes we do as we have tall pine trees at the end of the garden, not on our property and the land owner refuses to deal with them.
Rejected food - don't really fancy refreezing after it's been played with and spat in. Strategies are in place but fads are so changeable it's not predictable.
We're metered, our local water authority are now insisting upon it.
Clothes could be patched but it's time I rarely have, even this evening I've been up administering a nebuliser in between posts. I only buy Asda stuff anyway. Toys don't tend to break, it's more often furniture and often irreparably so.
As for disabilities, taking into account all three there is Autism, ADHD, Hypermobility (which effects ability to walk long distance) fine and gross motor issues, hearing imparment, severe visual impairment, sensory hyper and hypo sensitivity, renal and cardiac issues.