Thank you so much for the reassurance.
I shall take a chance and cancel my hostel and just keep the previous booking printouts with me (just in case)

Hello, I have a similar question. I have got 1 year schengen from Netherlands. I have shown hostel booking for purpose of visa, however I have a friend in Amsterdam with whom I will be staying for the duration of my visit. Can i cancel my hostel booking ? Will i be questioned by any border control o...