Why are people who shoot .45acp so afriad of .357sig?

I noticed that people who own 1911's are more reluctant or scared to shoot a handgun in .357sig. The last couple times I went to the range I used my Kimber with two boxes of Hornady FTX critical defense as eye candy. I eventually got 15 different people try my M&P .357sig after talking. The 1911 owners where the most reluctant and only 1/3 who owned a 1911 didn't hesitate and limp wrist but total of everyone who tried it only 7/15 like it and only 3 people weren't afraid of the first shot.

I thought it was pretty interesting, cause it's not like a hand cannon but I noticed others talk like it is when ask others at gun shops/outfitter stores, among shooters that I talked too only LE/ex LE officers and security guards would be willing to buy one and only a few regular civilians that I talked to would be willing to give it a try but not buy.