[tex]\huge\mathcal{\fcolorbox{lime}{black}{\orange{Answer❣}}}[/tex]
It's simple. The scarf was a very early standard of country & western fashion. Marty Stuart started playing country music professionally at the ripe age of 14 in Lester Flatt's bluegrass band. As can be seen in the picture below, he was wearing fluttery neck wear even then, like most everyone was in Flatt's band
