to assume that a teen is married to a middle aged man?

[Asianfemale]

My middle-aged white DH was in a large computer store getting his and my laptops repaired. Our mixed race (but looking more Asian than white) teenage DD came with him for company. DH mentioned that one of the laptops belonged to his wife. Without skipping a bit the engineer asked DD to describe what was wrong with her computer assuming that she was the wife.
DD was really embarrassed and walked away. DH says it happened before and he is worried that she wouldn't want to be seen with him in the future.
Innocent mistake or WTF? Would that happen if DH was out with a white teenager? Has this happened to you? AIBU to be concerned?

[Xiaoxiong]

The coffee thing at a conference has also happened to me and I'm pale, blonde or was before lockdown and hazel eyed. Some men see a woman and it's like their brain just cannot compute that we are anything other than a support human for them.