Do we understand the reason many Smith & Wesson semiautomatics are typically Striker Fire? I began to notice that whether it's the newer Sigma/"SD" series or M&P, or the older Gen3 semiautos, they appear to be mostly Striker Fire. The only other "major" make along those lines is Glock. Otherwise, when I look at SIG Sauer or Beretta, their flagship model lines are Hammer Fire. I'm wondering about the history, if anyone knows it of why non-revolver S&Ws seem to be Striker Fire.

Could also be a misconception on my part as I'm not familiar with all non-1911 semiautos S&W has made in recent decades...

I'm also curious to know about any advantages and disadvantages as such beyond the obvious (i.e., you can--for whatever reason--take a DAO firearm and by cocking the hammer, simulate single action triggering if I'm not mistaken).