This is my mother's mindset too. If I am quick and wear a mask it is OK.
I heard on the news the number of people volunteering to get groceries and run errands for the elderly greatly exceeds the number of elderly signing up for these services. There is no need for any high risk person to go out, but there is definitely the want.
The economy is being gutted because the government feels the need to impose restrictions and shutter businesses because high risk people do not want to stay home. If they want to risk their lives I wouldn't lock them up, but I dislike ruining things for everyone else because they don't like to shelter in place. It should be venture out at your own risk.