As with every generation, your teens and to an extent your 20s are the years you often remember most fondly. Life was (generally) less complicated than it becomes later in life when you have more responsibilities, and these are the years you're becoming who you will end up being.
I'm on the older end of the boomer generation (born 1950), and I remember my parents' generation reminiscing about how much more civilized life was when they were growing up (during the Great Depression!). Kids these days.
Unlike many my age, I consider the present to be if not the best, definitely a very good time in my life. I'm semi-retired, married to a wonderful woman and have a sweet driver-quality Dart that hasn't needed a lot of work, nor did it cost me an arm and a leg.
Dunno where you live, but we don't have 24 hour ANYTHING out here in the sticks other than the occasional gas station/convenience store. It is nice that there are now stores open on Sunday, and past 5pm weeknights. Much as people like to gripe about them, we have the big chains to thank for that. Sad that "Main St." is dead, but I sure do like having a hardware or auto parts store open when it's convenient for me.
The internet changed the world in many ways, some good others not so much. There is a wealth of information (with varying degrees of accuracy) instantly accessible. Sure beats having to look up dated information at the library (when it was open). OTOH, there is all sorts of nastiness out there, as well as half truths and lots of sites with personal agendas marketed as news.
I don't particularly like the lack of privacy today, and it baffles me why many people (especially your generation) don't see anything wrong with that. Likewise, I don't get today's cellphone culture where so many people almost go into withdrawal symptoms if they can't check their email or Facebook page every couple minutes, though that is becoming trans-generational.
Bull. Middle-aged people thought Elvis, Chuck Berry et al were the Devil's music back in the 50s. Our parents' generation considered the Beatles, Rolling Stones or Jimi Hendrix to be nothing but noise. And so on. Funny how pop culture goes right down the tubes just about the time you hit 30.
As far as cars go, yeah I'd be hard pressed to name a visually appealing vehicle made in the last 20 years or so, but even the cheapest imported econobox runs rings around anything built in the muscle car era or before. They're almost maintenance-free, get way better gas mileage and last a whole lot longer. When I was growing up, a 5 year old car was considered ancient, and it was extremely rare to find one 10 years old. Now a 10 year old car is almost considered new.