Didn't read all the posts but for the ones I did
Before posting, please take a deep breath, and exhale while counting to 10
The OP asked a question on how you handle this in your home.
There is no right or wrong answer.
If your method works for you and your family great
.
What works for you doesn't always work for someone else.
No method makes you a better or worse parent for doing what you do.
OP,
Reading your replies, I think that your methods and our methods are very similliar.
We share everything in our house - food, drinks, colds, toys, games, puzzles, etc.
DS got a slot car track for xmas, both kids play with it.
DD got a Udraw for the wii, both kids play with it.
Do either ask for permission to use it, no because it is in a common area.
If someone is playing with something, then the other needs to ask to use it just not walk up and take it.
Before taking a sip or bite of food or drink, we ask if we can I have some. It is not just walk up and do it.
If something is in someone's bedroom, then you need to ask permission to get it. If they say no, then it is no. We consider bedrooms your safe haven. Everyone is welcome but need to get the okay from you.
We have done this since the kids were babies.
It is just 2nd nature to them, no questions asked about sharing.
It works for us and we are happy about it.
Wanted to add that it makes DH and I just smile when we are sitting somewhere sharing 2 ice creams or even 1 large dish with 4 spoons.
I do not think we would get the same enjoyment if we had to purchase 4 mickey ice cream bars only to turn around and throw 2/3 of 2 of them away.