How actually useful is learning how to write ?

So I have been studying Japanese for more than two years now, both at my university and by myself.

I am currently at a point where I can read almost all Joyo Kanji and actually a good deal of non-joyo ones. However, I really can't write much kanji. I literally forgot how to write 特 like two days ago even though it is like N5 level.

To be honest I didn't really care about this problem until I realised that if I want to do my Master's degree in Japan one day, I might actually need to write them when I do stuff like writing essay.

Hence my question for people who have life and/or study experience in Japan, how actually useful is it to be able to write kanji ? Like, is it possible to study in Japan (in a degree that is entirely in Japanese) without being properly able to write kanji ? Is there any other areas of life where it could potentially be a burden to have this inability ?