Yeah I noticed a lot of P1s and P2s at my school are incredibly immature. I look back and think "were we like that 2-3 years ago?" and I don't think we were. But on the same token, as tem said, older generations probably feel the same way about us.
But in my defense, when I applied to my school, there were 900 applicants. Now, the school is struggling to even get enough students who are *qualified* to be admitted. They're gonna have to lower their standard of a 3.0 math/science gpa to a 2.5 eventually to stay in business. Seems like they're taking what they can get, even if it's the immature students with GPAs 0 standard deviations from the mean.