My next door neighbors just had a pesticide treatment sprayed on the entire exterior of their house... including patio furniture, outdoor cooking area, the yard

My next door neighbors just had a pesticide treatment sprayed on the entire exterior of their house... including patio furniture, outdoor cooking area, the yard that their young children play in... this just one week after a neighborhood wide mosquito treatment (I opted out and asked for an MSDS from the application company). I just don't understand people. I would rather see a spider/wasp/ant occasionally than be doused in pesticides.