I would agree you made a prudent choice but it does seem like a drop in the bucket as any kind of exposure to modern lifestyle in childhood correlates with similar issues of perturbed microbiome, autoimmune disease, reduced fertility, and metabolic syndrome. Exhaust particulate, herbicides, plasticizers, PCBs, heavy metals, and the like are universal.

Even the background level of 410ppm CO2 which a child can never escape is extremely unnatural.