I recently watched a three year old coming to terms with her one year old brother's need to hold a toy that until recently she thought belonged to her. Sharing - it doesn't necessarily get any easier. But for some people, it is automatic. Dr Michael Bergstrom from SKL, Sweden, sent me a one page summary and a pictures of the top 10 slides (in his opinion) from the Paris Euroforum.
Just a perfect example - of sharing.