Y'know, usually I get annoyed at adults when they try to randomly help me when I don't want or need help. Now, because of this, I am just going to act like they have as pure of an intent as a toddler and treat them accordingly.
It's a good outlook to have. When you assume people have good intentions it makes a world of difference.
That would also help your own stress levels, being annoyed at strangers is a pathway to long term stress and relieving that is very healthy
Yesterday my 4yo asked me to fold his sweatshirt for him when he was changing in the kindergarten. I said I would help him but I don't know how. He smiled and explained it to me, perfectly folding it in the process.
30 years later she'll still cringe remembering that time she lectured an adult about elevator buttons.