Salespeople/charity workers & social anxiety

This might be a slightly controversial topic but I thought it would make a good discussion subject.

How do people feel about salespeople or charity workers setting up in places you HAVE to go, like the sole entrance/exit to a shop, or outside a doctor’s surgery, then approaching people as they walk in.

Before I sound like a misery guts! I would love to help all of the charities if I can, and I try to do my bit, but obviously money is an object so saying “no” is something you have to be able to do, but I figured that a lot of people can’t do this.

Should they be told to set up somewhere where there is an alternative route so that people can avoid them if they need to?

I’m especially interested in responses from people with social issues or anxiety but anyone is more than welcome to comment.

I find it easy enough to say “no thanks” but if I were on my own I don’t know if I’d have the confidence and would probably get suckered in. I have lied in the past when it was the AA breakdown cover looking for new members and said I am already a member.

Thanks.