I live in a fantasy world of my own construction, and in that world nuns work in parishes and get paid as do the lay workers, one order of Sisters runs assisted living facilities as well as a facility for disadvantaged children, still wears a full habit...not so "invisible!"  Other Sisters I know teach in schools....there are many, maybe thousands, and the churches are full of people praying in latin, with a glut of priests to lead the services and thousands more in the seminaries.  It all seems quite real to me.