Young people today are very reluctant to assume that anything is certain, and this reluctance is revealed in their language. In any matter where there might be disagreement, they will put a question mark at the end of the sentence. And to reinforce the posture of neutrality they will insert words that function as disclaimers, among which the favorite is ‘like’. You might be adamant that the Earth is spherical, but they will suggest instead that the Earth is, ‘like, spherical?’
http://life.spectator.co.uk/2016/06/universities-war-against-truth/
