Yeah personally I wouldn't want to go too far back; within living memory, the life expectancy even in the developed world was a good 20-30 years less than today due to a lack of antibiotics, vaccines, and other medical interventions.

Might have been nice to have spent more of my life pre-internet and especially pre-social media though. I was born in 1989 and grew up in the 90s and 2000s which was nice, but I guess being born in the 70s and growing up in the 80s might have been cool.

I was born in 1984, and would have liked to be born in 1976 instead. That way I could be 8-9 when the NES initially launched and 18 when the Sega Saturn and PS1 launched. I haven't really enjoyed the world since 2015. Besides Nintendo games getting better, from the Wii and Wii U days, there's no real improvement to life. Right now I'm trying to finish collecting for so many retro consoles and if I was born just 8 years sooner I could have started collecting that much sooner. Getting in on the ground floor of the Saturn would have been a dream come true for me. I loved that system but nowhere near me sold it and I had to settle for an N64 instead.

This depends on the country really. For the developing world things are absolutely better compared to 20 years ago but for the developed world it's a lot more nuanced. Like for the UK there's a strong argument that life was better for the average person back in 2000-2006 compared to this decade so far.

I was born in 1991, I would have prefered to have been born in 1946, right after WWII, experiencing the economic boom, living through the culture of the second half of the 20th century, before internet and social media took over. The past 10-15 years have only really seen regression honestly.
There are some other eras I would have liked to have experienced also, the renaissance, the bronze age, eras with less technology.

You do not acknowledge that the cost of living has gone up?

It was, but now I'm stuck in the same cesspool world regardless. Not looking forward to ageing in this world.

Pre-industrial revolution sounds better to me. But then I'm sensitive to any engine noise, central air, too many visual stimuli, too much information vying for my attention all the time. I'm not made for the 'modern' world.

Living in the time of Leonardo Da Vinci sounds appealing to me. 

You know there's a good reason Da Vinci was in high demand to design fortifications, weapons, and military technology to the Italian rulers, right?

Not to mention the Italian peninsula was struck with an outbreak of the plague in 68% of the years between 1348 and 1600...

Also no movies, no video games. High chances not learning to read (or unable to afford books)

I would argue it's the other way around, the developed world has gotten a lot worse over the last 20 years (more like the last 13 really, it was fine up until like 2014) while the developing world has steadily improved as things like extreme poverty, the prevalence of disease, and childhood mortality gradually decrease.

You misread my post. I said that things have absolutely gotten better for the developing world in the past 20 years while for the developed world it's a lot more nuanced. I do agree on 2014 since about then is when a lot of socially harmful stuff started really taking off.