Maybe it's because we live in a multi-tasking world? Always on the the next thought. Or perhaps it's a negative consquence of being retired, my mind not as sharp as it was back in the days of w*rking.
I think we reach a threshold where we're doing a task for the 10,000th time and stop paying attention. The trick is to keep your focus on a task instead of being distracted by anticipating something else that you're going to be doing (or would rather be doing).
When I think back to my working days, I was usually exhausted and nursing a chronic tension headache. It was all I could do to stay polite, let alone awake, until bedtime. I'll take retirement distraction any day.
Part of it is because your brain fills up. It's all in there somewhere, and your mental hard drive is thrashing around trying to find it. If you don't frequently refresh vocabulary or a skill by practicing it every week or so, then it goes into "tip of my tongue" storage.
My worst mistakes come when I'm simply not paying attention. If I'm paying a bill at a restaurant, and someone starts a conversation with me, I frequently have to ask the conversationalist to give me a minute to finish the transaction. Otherwise I'll leave my credit card at their cash register, my wallet on the counter, and my car keys at the table. If I'm getting ready to go out the door and someone wants to chat about something while I'm trying to load up the car, I'll forget half of the things I should be bringing along.
How does one know when it is dementia rather than normal aging? I want to make sure I turn over important decisions, rather than fight to retain them, when it's time to do so. My parents wouldn't....and the family lost heavily because of it.
How do really old folks keep from getting scammed or causing family "wars" as they age but don't understand or accept it?
I've read up on this while caring for my Dad.
Most elders aren't interested in taking dementia tests, like spelling words backward or drawing an analog clock face and setting it to certain times. However if they're referred by a doctor then they're more likely to go for a consult.
The "answer" is that you usually don't know when you don't know. You're already a little confused and maybe even disoriented, and then you feel that you're being condescended to and manipulated. Defensiveness kicks in right after that. Dementia has a number of complicated causes including symptoms related to blood pressure, diabetes, medications, lower tolerance for alcohol, and many other medical syndromes. In general, high-functioning individuals can mask dementia symptoms for much longer. My father's in mid-stage Alzheimer's but can still pass a mini-mental state exam and can engage in social conversation for over 30 minutes before the other person begins to notice the issues. He only runs into trouble when he has to demonstrate specific skills, like balancing a checkbook or having to dial "9" for an outside line before dialing 911.
When he was sliding down the Alzheimer's slope, any unsolicited mail would get a check from him. It started out with causes that he supported from personal experience, like curing cancer, and then went into things like police fraternal organizations and kid's ID programs. By the time he moved into a care facility he was writing 2-3 checks per month for $20-$30 per organization. Once your check is received by one organization and they sell their mailing list, everyone piles in. I've heard of elders giving thousands of dollars to charity fundraisers just because they identify with the appeal or feel the urge to help. The only solutions are to keep the junk mail from showing up, or to take away the checkbook, or to keep their check from going in the mail.
Most of the time the transfer of power is initiated by an authority figure like the doctor, the police, or the DMV. Then a spouse or an adult child can finally use that as a lever to get the revocable living trust change or the joint checking account or the power of attorney.
I've read that in a perfect world, the elder would hand over the power at a certain milestone like an 82nd birthday or an adult child's retirement. My spouse says she's taking over our finances when she turns 60 ("Sure, dear, just when I get it all running in autopilot") and then turning it over to our daughter when SHE turns 60.
The advantage of this turnover deadline is that I'll get to spend more time surfing and less time logging into financial websites...