Bottle openers are unnecessary...until they aren't. I like my beer. The beer I like comes in bottles without screw off caps. Sealed caps protect the flavor better than twist offs. I don't leave my house without my Beer Scout...plus my Leatherman Rebar...and I have a Gerber Shard on my keychain. I really like having a bottle opener on me. I enjoy drinking and making craft beer. I don't even ironically have handlebar mustache, sport a long beard, or wear flannel in a mostly urban setting.
Depending on when you define the cut off date of the Gen X/Millennial generations, at 36 I could very well be considered a "front line" Millennial. I have always considered myself more in line with Gen X as while I did hit my adult stride post 2K, I was shaped quite a bit by the 1980's popular culture and the music/economy of the 1990s.
That said, it's probably not the best idea to discount the newest generation when it comes to what sells. Gen M is no longer just the group of kids buying the toys. They are now full fledged adults buying durable goods, homes, and investments. There have been studies that they are actually MORE into traditional goods of higher quality than Gen X. Most of that probably has to do with so much plastic throw-away garbage we bought in the 1970s and 80s as well as a lot of younger people being put in a situation where launching into the job market has been really, really tough so quality is important when it comes to purchases.
So, while it may have been popular to lump the younger folks into freshly piled special little snowflakes, I think it's important to recognize that this new generation is the driving force of our economy. Not to mention the generation that has been saddled with massive debt as well as bravely serving in wartime (I remember when I was younger in the 90's that going into the service was just a way to get your college paid for).
It's these younger folks that are driving the popularity of such old school things as vinyl records, traditional shaving, and film-based photography. What was old "outdated" tech when I was a kid has been revitalized by this younger generation and preserved. Ya know, like traditional knives and the like
But I digress...
In short, I won't own a tool that won't pop a top. Different strokes for different folks