The term ‘baby boomer’ is used not only to identify a particular age-group, but also to identify a state of mind, a way of thinking, an outlook on life or the political outlook of a generation of people who were in their teens and twenties during the sixties. If this is so, and as inaccurate as this description may be, it would also include many people born before 1946. Wouldn’t it?
I see that this type of generalization is still being used now for younger people, for instance: GenX. And now there’s GenY and Z coming up. But I think these groups are ‘identified’ by the news and entertainment industries who insist on seperating people by whatever groups they find convenient for themselves and will match their own social outlooks.