Yeah, and how many people around the world have forgotten their passwords at least once in their life, probably more? That's just one of the reasons it would suck. Sure, my place of residence could burn down and I could lose the physical card (along with a host of other stuff) but in that instance I think I'd have a bit more to worry about for a while.
As some of us have said before, it just wouldn''t really be the same digital. Not from a collecting standpoint and certainly not from a playing standpoint. I think one of the reasons I don't do much with the Pokemon OCG is because to me it's just doesn't mean as much to open up a virtual booster pack and get (for example) a Primal Groudon EX and have it chill online compared to opening a real booster pack and getting a Primal Groudon EX (with reverse holo Groudon spirit link, which happened to me already and is another effect that would be lost upon digitilization) and then knowing that I can either put them in a binder, put them in a deck, or maybe just leave them sitting in a hard case on display somewhere in my place.