He tells stories of playing in rooms with all the chemicals around, open containers--harrowing by today's standards.
My husband is still alive and my FIL is still a healthy old guy.
Strange thing, his father (NOT in the pest control business) died of colon cancer before the age of 35.
I was a leader on our Hazmat team for several years. I have a healthy respect for chemicals. I had nasty exposures that sent many of my co-workers to the hospital. But I seem to have no lasting problems from them.
The types of chemicals and the concentrations that people are exposed to from mosquito spraying are not dangerous. The dangers from mosquitos born illnesses are real. It is sort of a no brainer.