What are freelancers’ rebuttals when a client asks for a free sample before upfront payment or escrow?

[Btaliat]

You need to understand the fact that you have to be smart as a freelancer. Make sure that you don't send smaller in some cases except you have come to the conclusion. Asking freelancers to send some samples before they accept you can be seen as a sign of scam in most cases. You need to ensure that you come to the agreement of allowing the clients to pay at least some little amount. What do you think about this?