He said "this stuff" , which i assumed to mean escorting in general, he would have been more specific if he meant only hers ?
Also it hard from government to legalize only some form of prostitution over others even if politically that is possible, practically impossible to enforce.
Sure, escorting businesses like hers, where there's clearly no victim being trafficked or abused.
Also it's not at all difficult to legalize only some forms of prostitution. Consider this analogous situation: it's hard for a government to legalize only some forms of cutting people with knives, but we seem to do fine legally distinguishing surgery from assault with a deadly weapon.
Also it hard from government to legalize only some form of prostitution over others even if politically that is possible, practically impossible to enforce.