Speaking about exact itineraries, it is a very common practice. For instance, for almost all ex-USSR, travelling to the "Western World", you have to provide the same exact route of you with days, reservations and tickets. Some countries don't care, but some, like Germany or UK, are very strict about it, which is a big pain in the heck, at least for lazy people like me – it is like the biggest problem for me even to visit UK, because I don't like such strict decisions!