Ugh I would hate to live in the 70s. Just looking back at my childhood in the 80s the level of technology is horrendous. I wish I could have grown up with computers and the internet! I didn't get the internet until 1997!
They didn't even have Digger in the 70s'!
Also, you would have to experience the disco craze in the 70s', the 80s' fashion and hair, all those horrible hair metal bands.
OTOH, it would be fun to see my favorite metal bands before they got big, like Metallica, Megadeth, Slayer, performing in small clubs in front of the very small audience ...
But in general, going back to 70s' would suck.
Well, I was alive during the 70's, and it didn't suck.
Sure, it was different than it is now, but it didn't suck.
First of all, Disco, while it did indeed suck, was really only in the late 70's. And even then, it wasn't ALL Disco. There were other bands that were quite popular then, and much of the music was pretty decent. It wasn't like it was 24/7/365 Donna Summer or anything. And let's face it - the Village People ARE entertaining, if nothing else.
Early to mid 70's music was pretty damn good. I mean, you have a problem with Led Zepplin or something?

Wouldn't have wanted to have been there for Bruce Springsteen's beginnings? And then, the Eagles were great. Foreigner was good. Styx was pretty decent...Kansas was good...Chicago was busy during that time.
And in the 70's there was alot more freedom. There was no AIDS, no Herpes, no War on Drugs.... So being young was...erm....alot more like one big party rather than like one big SAT prep class.

Parties at the beach every weekend, hanging out with friends and having a good time - not sitting in front of a TV screen or a computer monitor.
As far as other entertainment goes, the biggest actors during that period were guys like Paul Newman, Robert Redford, Dustin Hoffman - GOOD actors. Not idiotic posers like we have today. And alot of the classic film actors were still alive and making movies - guys like Burt Lancaster, Kirk Douglas, Rock Hudson. THOSE were movie stars!
As for not having computers and the internet...well, we didn't miss what we didn't have. But then, we had ALOT more real social interaction. Our social lives involved alot more real people in real social interactions and alot fewer cyper-pals on the internets. And since we also had alot fewer TV channels, we watched alot less TV. But what we did watch, everyone else watched too, so it was alot more fun to talk about.
It was an interesting time. The Vietnam War was going on, the whole hippie movement was happening.....Watergate and Nixon's resignation, the Munich Olympics and the Israeli hostage situation...
The world wasn't changing very fast technologically..but it certainly was changing socially, politically, and morally.
In truth, it was proably the most 'alive' decade of my life.