I personally find paper&pen both comforting and unsettling at the same time. Soothing because writing really helps sort out thoughts etc. Mindflow is different from flow "on the computer/phone/tablet".
On the other hand, it's distracting because without an index system (I start each notebook with two blank pages trying to index the contents; every other page has a number) it's easy to get lost.
But today's kids, being digital natives, may take a different approach. Paper&pen may present anxiety for them. So it very much depends on the family we grew up in.