FeedMe doesn't share food.
Fakename - If I'm given chocolates for Christmas, I'm going to open them, then sit there and eat them all myself in front of the rest of my family. Not! Is this really what you do op?
I wouldn't open them in front of family if I didn't intend to offer them JUST ONE share them. I would save them for an evening when I was on my own, then settle down with a cup of tea and my favourite TV shows and enjoy them. If I came to open them and found that some bugger had beaten me to it I'd shove the remaining Turkish delight one up their nostril.
I get very few luxuries just to myself. I work hard, am single mum to 3 dcs and my DP has two more so my house can be a bit busy on a weekend. If I had to share everything 7 ways I'd feel very resentful.
DP is a right sharer, gets on my tits sometimes! He loves sharing food and he lets the kids use his phone or his iPad to play games. I like my stuff free of sticky fingerprints and cracked screens so I tend to keep it out of the way.
As for food, my dcs are all like me, prefer their food uncontaminated by other people. They are expected to offer a polite one or two of any sweets or treats they may have, but if it's a bar or just a small pack of something then no, I don't see why they should share. Nobody goes without so no reason everyone can't just enjoy their own stuff.
DP bought me a Boost the other evening. He then asked if he could have half of it. Next day he told me 'someone' had eaten all of my Boost and he'd buy me another one. 
He once told his DD to try something from my dinner plate in a restaurant to see if she liked it. I told her it was a bit spicy and she wouldn't like it 
All you chronic sharers might think we are selfish but you are annoying to those of us who value our little tiny piece of occasional luxury. I wonder if it's those who feel like they give the most emotionally who hoard treats like this and wouldn't dream of stealing other people's chocolate as they feel how much it means to them?