Conceding against infinite combos

Do y'all concede when someone has presented an infinite loop that will defeat you? Or do you make them play it out.

I'm a competitive paper player so it just feels crazy to me to make people play it out once they've shown the loop,,, In paper, you don't have to keep looping over and over, you just present the infinite combo. I guess I can understand waiting to see if they miss click something, but that feels lame in a competitive setting 😂 was just curious about people's thoughts on this