No real argument, but I'm not talking about that long ago. When I was a kid, lots of parents smoked, in the house, in the car, everywhere. My father did. Yet I don't remember any of my friends having asthma or using inhalers. Peanut allergy is very common today, among my kids friends, several of them had it. Was almost unheard of when I was a kid, schools served peanut butter often at lunch. Nobody was ever asked what food allergies they had.

It's possible my anecdotes are not representative, but this is just what I have observed.