Hey dear, every field of engineering or job has its own importance, it depends on your choice where you want to go. If you like computers and coding stuff than go for cse engineering and if you like travelling and giving time to yourself than merchant navy is the best option. Each of them have their own benefits, like in merchant navy an average student can earn more than an average software engineer. And a software engineer lives with the family everytime and earns enough to take care of family.