Like Huseyin did what was best for his family at the time, Muhamed does what was best for him. Muhamed stays behind in Turkey to build the house his father wanted their family to build before he passed. back in Germany he was unemployed and did not have much of a life outside of his family. After his father passed he thought it would be best for himself to stay behind and carry out his fathers dream of the family having a place to stay in Turkey. It makes sense for him to be the one staying behind because he had less to lose out of the siblings and it allows for him to create his own life like his father did when he moved to Germany for work. Muhamed leaves what he knows behind into the unknown to find himself and to do what is needed, like his father did before him.