Is watching cartoons like "Tom and Jerry" or "Superman" permissible or forbidden, with the television sound muted to avoid music, for someone who is 21 years old?

Numerous fatwas have previously been issued regarding the ruling on watching cartoon films, and the ruling depends on their content. If they are free of prohibitions and concepts that contradict Islam, then there is no harm in watching them for both young and old, and the viewer does not incur the sin of the animators. Nevertheless, an adult, especially a youth, should invest their time in seeking knowledge and important matters; based on the Prophet, peace and blessings be upon him, who said: "The feet of the son of Adam will not move on the Day of Resurrection from before his Lord until he is questioned about five things: about his life, how he spent it; about his youth, how he wore it out; about his wealth, from where he acquired it and in what he spent it; and what he did with what he knew." As for the specific films mentioned, a general ruling cannot be given due to not being familiar with all their episodes, and the principle is what was mentioned earlier. Friends should be advised to utilize their time in what is more important.