Is it good to date a teacher?

A relationship between a student and a teacher should be acceptable as long as they maintain their professionalism within the school. A student might have a crush on someone they met online, in school or in person. He or she might want to start dating, but students shouldnt want to date a teacher.

Can a teacher marry student?

You can marry your student only when she attains majority. as you have rightly mentioned in your query that your student is hardly 14 years of age, therefore you will have to wait for another 4 years before you can get married to her.