Wikipedia defines common sense as “knowledge, judgement, and taste which is more or less universal and which is held more or less without reflection or argument”
Try to avoid using this topic to express niche or unpopular opinions (they’re a dime a dozen) but instead consider provable intuitive facts.
The sky is actually the entire colour spectrum with a bias toward the short wavelength end of the spectrum, which is why it appears pale blue-ish white.