As I understand it, most Roman Catholic parishes (at least in the U.S.) Do not serve the daily services (i.e., the Liturgy of the Hours). As an Orthodox Christian, this is really strange to me, as Vespers (and hopefully, also Matins) are staples in daily services as well as for important feast days and Sundays (many Orthodox say "Sunday begins at the Vigil!", the aggregation of the 9th hour, Vespers, Matins and the 1st hour into a single service on Saturday night...served mostly in the Russian tradition today).
I know they are sometimes served because I had friends in Rome on Candlemas, and they shared with me photos from the Vespers for the feast, with Pope Benedict serving. However, that seems to be an exception, as my understanding is that now if the Liturgy of the Hours is served, it's a private devotion instead of public worship services. When did that change occur and why?