~Snipped
Secondly, for our old parents we should not let them go to the bank alone, assuming that woman came with either her son or daughter that ugly incident wouldn't have occurred.
Great advice but not enough.
I have a relative that isn't too conversant with new tech stuffs like ATMs and he took his daughter in university level along with him to the bank to help him withdraw proceeds from sale of a piece of land. What happened? Very similar to the one described in OP even with the daughter around.
When it comes to dealing with financials, we should always deal with people that know their stuff and are trustworthy.
No one is truly your friend at the ATM stands. I'm glad I learnt that lesson a few years ago without being a victim.