I don't think there are more than a handful of "heating vs eating" people in the Netherlands. On the contrary; poverty is positively correlated with obesity.
We do have lots of baby boomers in big houses that they heatup just for themselves. My mom has 4 times my heating bill by herself than I have with a family of four. It would solve a lot of problems if the elderly move to smaller houses and leave the bigger houses for families that need them.