I know some in France who will not surrender their weapons and they know others who will not surrender theirs. Come on, the weapons might be old but we all know what they are capable of doing and their governments fear that.
For example, "Joe", the son of a famous member of the resistance has his parent's "9mm". The authorities told him he had to surrender it. After being assured it would be placed in a museum, he gave it to them. The only problem was that he gave them another while keeping the original. BTW, "Joe" is a great guy.