idk who this advice is for, but if you have an aging grandparent who is losing their hearing, text notes on your phone work great! You can make the font huge & it's easier than scribbling on a whiteboard!
Last time I visited my grandma, I saved this last message to her in the notes app, because I had a feeling it might be the last time I saw her.
Seeing this hits different now. I only wish I'd thought of doing it sooner, because for a couple of years she's been withdrawn when I'd visit, because she couldn't follow conversations. I did finally realize her vision was good & I could write stuff down, but my handwriting is crap lol.
Anyway. Notes app. If it's applicable to your situation at all, try it! I got to actually communicate with my grandma again before she passed, and I feel like an idiot for not thinking of it years ago.