What are the advantages and disadvantages of being a mangaka?

Well,if you like drawing ,and you're good at it,you can use it too. Some Jpanese artist earn so mouch mony from their comics/mangas.It depends on the series' popularity.The benefits,well,first,you do what you do because you like it,you don't have to depend on anyone,and you can easy earn money from a doujin book ,for example.