Even without the biometric data you still run the risk of being asked to "step into a small room" as I found out on a recent weekend to Amsterdam recently, Many years ago in the 70s I worked as an engineer on board a pirate radio station that got into difficulties and all on board was evacuated to Scheveningen (Den-Haag) Holland where I spent the night in the cells and was deported with a big red stamp in my passport as "an undesirable alien",
Now several decades and many passports on, Upon getting off the ferry at the hook of Holland my name for some unknown reason was checked on their computer, I was pulled to one side, and asked to explain why I had been previously been deported from Holland, I was only detained for about 20 minutes before common sense prevailed and I was allowed to continue my visit, I just could not believe after all these years my name was still on their files.