I also love how each of the turtles are not perfect and have some flaws as well. It shows that they still have alot more about them that we don't know about and what we can relate to them with. I love Leo as well and surely, he has the most responsibility out of he and his brothers seeing that he's the oldest and he's the leader. I also do agree that Master Splinter expects alot out of him as well as a leader and an older brother and Leo tries very hard to succeed at what he does too.
