The round body is relatively simple and suitable for beginners, because it requires less skills and is easier to master. But in some cases, such as writing an examination paper, the round body may be considered as not standardized enough.
Italian italics need more practice and skills, but their writing style is unique and beautiful. If you want to improve your calligraphy and try different fonts, Italian italics is a good choice.
In short, beginners can choose to practice from a round body, while those who want to improve their calligraphy skills and explore different fonts can choose to practice Italian italics.