I think you can certainly say that some people benefit more than others from the "redistribution", even if you don't account for every single spending. There are certainly people who pay more than they receive.

In the case of family support, it is clear the non-parents receive less than parents. If there are no things (or fewer) things that non-parents benefit from that parents don't benefit from, then it is a net loss for non-parents. (Non-parents could for example benefit more from government sponsored care of the elderly, which might in part be taken care off by children of parents).