Your parent made a much narrower point than you’re debating: you argue in favor of digitizing general medical info and your parent made the point that therapy notes should be paper-only and locked. The risk/reward tradeoff is different for those than allergies, general medication etc. The information contained is much more sensitive and at the same time they’re much less likely to be passed off between therapists unfiltered and unredacted.

Both, digitizing general medical info and keeping specific bits in analog form for safety and security reasons are not mutually exclusive.