As a child, I used to eat the rinds that my mother had cut off the bacon before cooking (yes children, bacon used to have the skin left on). But then again, I used to clean out the mixing bowl after she made a cake mix, raw eggs and all.
It hadn't really occurred to me that there might be children who wouldn't do this...
As far as I know everyone adult or child did this.
Dire Health Warnings attempted to deter this, initially after Salmonella scares and more recently in the USA, where Nasty Things Happened (I think the FLOUR was the issue) but USA food hygiene leaves something to be desired.
As an avid fan of Gordon Ramsay's Kitchen Nightmares, it seems that food hygiene is a potential issue pretty much everywhere; there will always be those who will take more risks than they should. Having spent a lot of time in the USA, I have not seen any evidence that their general food hygiene is any worse than in UK.
It's sadly a lot worse. There are only reason eggs have salmonella is the horribly industrialized battery chicken rearing (the same for most other bacterial contaminants). In the US, eggs, chicken etc. are washed and sterilized which is a patch on the real issue. The massive US beef and pork industry is immeasurably horrific, worse than Upton Sinclair could imagine.
My mother never made a cake, for which I'm thankful, but we used to get a Victoria Sponge every Saturday. Saturday was also the day I ate a couple of kilos of broken biscuits and washed it down with K-Ora with my hoard of cousins (my mother had twelve siblings, so we were a literal if mostly illiterate hoard).