the stones started off as an rand b band, they did a fairly good version of little red rooster, after the death of brian jones they changed directioN to some extent.
i can think of better blues singers than jagger joanne kelly and steve rye was a very good english blues harminca player,
but mick jagger is not just a mediocre blues singer he is a front man an entertainer and a dancer. and a competent and decent pop singer
jagger richards wrote some good pop hits and jagger sings these well enough ,
the stones have given a lot of pleasure to people ,why the feck should they stop,
just because some self important musical critic, , who also appears to know nothing about blues harmonica playing, thinks what they did 50 years ago was better, that is not a sensible reason to stop giving their fans pleasure., and for them to stop enjoying themselves