Why didn't sackboy become bigger?

[Lawlight]

curl-6 said:

Lawlight said:
As for personality, Sackboy has more charm and character than an avatar like Mario or Link, for example.

What charm and character? He was intentionally a blank slate.
Mario, by contrast, brims with character, from his joyous exclamations as he jumps, flips, and spins, to his endless enthusiasm, to hs childlike exuberance as he run with his arms outstretched pretending to be an aeroplane. He's not just an avatar, he had a distinct personality that it appealing and infectiously upbeat and cheerful.

Obiovusly he's not - have you played the LBP games?