And 'so'?

One of the compensations of aging is being entertained by changing language. The accents of people in the movies and in own family who grew up in the 1910-1940 period sound a lot different than most American accents now. A lot of the regionalism has been washed out by mass media. My New England relatives sound less New Englandy, my Southern ones less Southern,. And then there are such quirks as the overuse of "like'' and, in the past decade or so, the tendency of people under 4o to begin many sentences with "So.''