Well, most new instruments are imported with a ‘factory’ set-up. The exporters know that conditions in your country are likely to be very different from theirs and so they put on generic fittings like the strings and the bridge, and even the nut and the fingerboard, expecting that you will get a local luthier or supplier to adjust your instrument when you get it.
The way these items are shaped and fitted on your violin can make a huge difference to how it sounds, how easy it is to play and how it responds to you.