honestly, i learnt from other "old timers" that have had guns for eons, to never dry fire.
some mentioned putting a rubber washer of some sort to prevent the hammer from going all the way to fire.
many say no harm will come to striker guns..??...i dunno, i posted a picture of a breach face, (from the inside) being damaged from dry firing.
i have 1911's, striker guns, and revolvers, and in nearly all the revolver and 1911 owners manuals, "they recommend" that one NEVER dry fires those guns....so i carry that over to all my striker fired guns as well.
good habits are better to keep, rather that be having issues later, then trying to break bad habits.
but that's just me, and the way i learnt......like cleaning after every range visit.....