When learning a language, tongue twisters are usually given little time. Of course, you are unlikely to hear them in everyday Japanese dialogue. Sometimes people completely forget about their existence, but this does not mean that they are useless. The Japanese have many not only difficult, but also interesting and funny tongue twisters. You can also watch Japanese Movies with English subtitles https://asian-movies-online.com/country/japan . All teachers advise their students to watch films in the original - indeed, this is a fun way to practice speech comprehension.