My husband goes to France on business,years ago it was often,once near Halloween,he made little trick or treat bags up and gave them to his co-worker's kids,the man and his wife were from France,and didn't know about "trick or treat",but their kids liked it and thought it was very cool.
Many countries,in Europe,do not celebrate Halloween,it's more like you mentioned,"All Saints Day",which I believe is November 1st.