You are nevertheless in a Muslim country with a long tradition of repressing Christian belief and practice. Our Greek Orthodox friends can tell you all about that.
Nor does the selection of junk offered by a trinket salesman reflect any sort of "indigenous Roman Catholic practice," which doesn't exist in Turkey.
a. The trinket sales are inside the boundaries of the site.
b. In post 3 you claim there are Catholics in Turkey. Now you claim there are no Catholics. If there are 30,000 Catholics, isn't it safe to assume they are practicing?
c. Western Catholics were there by the busload. Should they have been appealed by the practice? Are you appalled that this activity is happening inside the boundaries of a Catholic shrine?