Blockchain would create a permanent record where data cannot be changed or removed. This raises all sorts of problems for education, particularly if we view learning as a process of growth and change.
There are some good questions "What happens if the data on the blockchain is wrong? What happens if the data is prejudicial, re-inscribing the prejudices that data collection and school practices already enact?"
Of course it's a;ways hard to accept something new, that's why there are a lot of doubtings or even rejection among public..But I'm sure that each system could be devoloped till the ideal form)