Part 1: No, replacing grape juice in the drinking fountains at school would not be a good idea, as it encourages unhealthy habits. Instead, schools should increase the number of water fountains throughout schools.
Part 2: Yes, some cartoons are violent. Cartoons normalize violence and make it seem common and acceptable. Violent cartoons can lead to disobedient, nervous, and aggressive tendencies, as children tend to mimick what they see on television.
Part 3: Tony Stark, otherwise known as Iron Man, is the best character in the Avengers series. He undergoes the most character development, as seen throughout said films.