That's fine. This exercise merely helps figure out how to get there most efficiently. If you want to maximize the time you spend not working, you'll want your money to be working for you as soon as possible.
If I understand "touch grass" as "do inexpensive, enjoyable activities" like hiking, going to the park, etc, then I recommend (assuming you're starting just out of college):
- rent a place close to your work to minimize commute time - don't buy, since that comes w/ time spent on maintenance
- get a good paying job that respects your time - dollars per hour are the most important, not total dollars - this is the hardest part
- cut expenses to the bone aggressively to save every penny - after all, the goal isn't to buy fancy things, but touch grass
Then once you get $100k or so invested, switch to a lower paying job that you enjoy or takes minimal time, while meeting your basic needs (example: part-time barista job that provides benefits), and let that $100k compound. if you can reach that point by 40, that $100k should grow to $1M by 65, at which point you can probably take Social Security or whatever similar program your country has. In the US, you should be able to get $2k/month or so (today's dollars), and that $1M should provide $40k/year (~$3k/month; future dollars), which in today's dollars would be something like $3k/month, which is a solid $36k/year (plenty of people live on that). If you wait until you're 70, SS would increase a bit (perhaps $2.5-3k/month) and your investments would grow a bit (provide about 70% more income), so you'd end up at $4-4.5k/month, which is very solid.
If you're comfortable moving to a less expensive place (assuming you live someplace like Europe or the US), you could retire much earlier.