This is actually really funny - when my bf first came to my house, I invited him to my room - without having met my family beforehand. There were no formal meetings or introductions of course. When he was about to leave, he looked very tense and I couldn't understand why. I asked him, and he said: "what should I say when I meet your parents?", and I said: "say hi". It was quite a shock for him that it would be ok to just say "hi". A while later, on some holiday celebration for which he joined us for the first time, my relatives were trying to be tactful not to ask him many questions so that he doesn't feel like he's being "interviewed".

to invite bf to the room when parents are around!!!! impossible in Turkey...maybe in 2050's

However the most common thing is to simple NOT invite your girl-/boyfriend home (meet in a soulless place instead) unless it's a casual "I ran out of sugar do you happen to have some?" type of excuse and then simply just forget to go home or becoming best friends with your girl-/boyfriends sister/brother. It's used a LOT in Turkey
But somehow the parents are usually not too surprised when their son/daughter reveals who they want to marry

things changing fastly in our country to and lately to be traditional ''out'' and to be open all news ''in'' for the big part of our people,i hope we don't lost our way more then enough on this social and cultural transformation...Popular culture creating its own freak human model and own social relationships a bit more day by day,and if it goes this way we will not know ourselfs even when we look at to mirror as soon as