And there are people out there that are completely opposite (like me). While I'm not a fan of mandating it - i can see why once it is easily available, if an incident happens where it would have prevented it that the owner is held accountable (same as car insurance with modern/vs old and insurance rates).
I myself would be more interested in having a gun in my home for sport shooting knowing there was a bio metric lock out as i do have kids in the house, At the moment we don't and won't because statistically adding it to the home would increase the chances of a child dying due to a hand gun accident more than they would reduce the odds of needing it to defend myself or family.
Nothing against people who want a gun for self defense - but unless you are in a line of work which regularly puts you in harms way - statistically your more likely to hurt your self or others than ever needing it to defend yourself (or others). And that's ok - its a choice - but do realize there is a large portion of the population that doesn't make that choice for those reasons. I'd view this tech could actually increase gun ownership vs. being used to suppress it.
My personal issue is that this tech is likely to get attached to a gun i don't care for - and isn't really able to be retrofitted to one i'd want like the XD-S .45 love shooting those..