The answer for home work is for kids to understand what they are learning and it challenges them to think and get there minds working and for them to achieve
use it to buy the fattest block of cheese
there is 2 main differences, basically which are the users and the market. the other difference is the kind of content
people who use tik tok are mainly people from east asia, kind of like the app douyin. musically, on the other hand, are used by people from america or european countries.
while tik tok videos show things like daily life videos, comedy, or just funny videos, musically are like people mimicking songs with their own actions, 'imitate' singers and video clips.
hope this !