Dementia is a scary prospect, for ourselves or our former president

I’m not afraid of much. Typical fear-inducers like heights, spiders and snakes are no problem for me. Two things do bother me, though. The first involves young ones who don’t know how to swim being near a body of water that is dark or murky. Panic rises up in my chest. If they accidentally fall in, how will I see them to save them? Just thinking about this makes me shudder.