Much depends on what you think your own rat race is. Likewise, much so-called primitive technology was at one time the latest thing and people wanted it for good reason. That wood-burning kitchen range? That's not so old. Two hundred years ago, cooking was done in the fireplace. Even fireplaces evolved and Thoreau mentioned the Rumford fireplace, relatively new at the time. But don't misunderstand me.
I somehow manage without watching TV (my wife, however, can't), don't wear a watch, don't have a smartphone. Yet I certainly have a computer with internet access. So, do I have a simple life or not? Not really but I don't belong to any organization that takes up time (used to, though). I have no real commitments, other than to my wife, something that gives some people trouble. If you want more time for yourself, that's what you do: you don't give it to other people, in a manner of speaking. It is a little selfish, I suppose, and I do miss some of the associations I used to have, including at work.
On the other hand, I don't worry about eating healthy. I'm 72 with no health problems that can be related to food and eating but I'm certainly aware that I'm 72. My weight has been constant and I do get enough to eat, so I figure that part of life is covered well enough. I do think, though, that we as a society have lost things that some other societies still have and which we used to have, or so we like to believe. What we seem to have lost is community. It varies, though.
Someone said we know people on TV better than the people across the street. That's possible but my father did not generally know the people who lived on our street in the 1950s especially well. Why not? He was away at work six days a week. Ironically, he knew a lot of people in other places because he was a truck driver on a route up until he retired at age 62. I worked until I was 71.
One of the things we have lost is that old people are usually not cared for by their families the way they used to--or so we believe. Some families were large (my father was one of 13 who lived), others not so large. But my grandmother was cared for at home until she died in her 90s. If an older person had no family and could not manage by themselves, they might be cared for by the county but counties (these are American counties I'm referring to) don't provide services like that anymore.
But the world is full of surprises. I've been watching a number of rather short videos made in Nepal of mostly farmers and sheep herders way up in the mountains. Some of them are of people taking wool blankets to a market, carrying everything on their backs. The villages are quite isolated and appear not to be accessible by wheeled vehicles, not even carts. Haven't seen any pack animals, either. The villages look ancient, too. Then, in one video, at a wool or blanket market, someone pulls out a cellphone. So don't be fooled.
So, escaping the rat race may not mean escaping the pressures of life. Different people have different pressures and different ambitions.