Why's literally everyone so tall?

I'm 20 years old 6'2, and I see people my age literally tall af, like I went to my school today and saw ex classmates and half of them are as tall as me, some are even taller. Not only that, literally everyone my age is tall af, visited a nearby govt college last night for a function and a good number of students were taller than me.

Gen z is super fucking tall, India's average height is supposed to be 5'7-5'8 for males and according to govt data, average height in WB is supposed to be LOWER, but wtf that's literally the opposite.