My mum’s mum had dementia. I am now worried that my mum, 64, is developing signs of it. She can be quite cold, this was a lesser trait in the past but now it can be very blatant. She doesn’t seem to care about things that I would be mortified about…parking over two spaces and not caring even when it’s pointed out (she’ll move it to park properly but only when prompted), leaving rubbish at tables for example we recently went to a cafe and she’d bought her granddaughter a toy, it came with loads of cardboard and plastic and she was fully prepared to just leave it on the table…just things that I think are really quite rude. Similarly when she’s had a coffee and it’s come out as the wrong order she will be calm and smiling but also very cutting to waiting staff. She’s never really been like this, in fact I would say if anything she’d give people the benefit of the doubt and be quite overly pleasant to people.
She doesn’t tend to forget anything much though. So maybe these things are just old age?