I believe most new shooters completely unfamiliar with a handgun would be better served of they bought a DA/SA pistol before they venture into striker fired guns. In a perfect world a decocker version would even be better. The US Army's 320 will come with a manual safety is an indication that someone in the chain of command recognized the risk to hundreds of thousands of young inexperienced troops receiving a striker fired pistol where the major safety feature lies between your ears. Just saying.
The above said, striker fired pistols are is where the market is. The polymer guns are less expensive, just as accurate in most hands and work well in the civilian environment both in the US where CCW exists and in Canada where the shooting sports attract a lot of the sales.
If you only have one type of gun then most will find ways to justify their purchase and argue their case. Truth be known there is room for all. I really have become a fan of the Beretta 92 series of pistols. Love them both, that said I also love the CZ design which I own but will move to the Walther PPQ M2 Match next year to enjoy IDPA Optic Division even though I think I still can shoot the M&P Pro as good - my ego and $1,200 from my savings account prevents me from saying better. The Walther is quite a piece of engineering I have to admit. The M&P and Glock are not even close when it comes to the trigger both in pull and reset. The ergos are no better than the M&P and not quite in the Tanfoglio/CZ league but still.........
To the OP love your gun. If you like shooting it won't be your only purchase there are a lot of very good designs out there waiting to remove the Queen from your wallet.
Take Care
Bob
A very dumb thought process. If someone can't remember to keep their finger off the trigger which is the same rule for ALL FIREARMS then they surely won't remember to apply a mechanical safety. You can't fix stupid you can only train people to be proficient. The "problem" with ND's is not the equipment it's the user.