Another factor might well be related to avoiding excessive accidental data roaming; e.g. helping to avoid surprise roaming bills, interacting with the EU50 dat

Another factor might well be related to avoiding excessive accidental data roaming; e.g. helping to avoid surprise roaming bills, interacting with the EU50 data roaming cap etc. (At present people easily run up bills for several thousands by downloading a single TV episode.) Intl roaming is quite prevalent in places like Europe so it seems well possible that related sensibilities may also be informing these decisions.