It is common for many parents to guide their children towards a stable job because the responsibilities of married life and a new family are difficult to be met without a good job that gives you a steady income.
Once you understand this, you need to know that until the last 10 years or so, many parents never dreamt that sports can be a career that can be pursued by students. Even now many think a government job is good because of its security and retirement benefits.
You are still in your 10th, you have time until your graduation to think and understand. Keep your options open. A basic graduate qualification in science or commerce would always help you to have a full time/part time job while you pursue your dream of being a footballer.
Focus on your physical strength, speed, stamina and agility that is important for a footballer. Take care of your nutrition and be careful and knee and ankle injuries( it has ended many football careers). Join the local football club, your school club, meet the coaches to help you out. There are many junior coaching campuses, look out for players of the national team or the Indian football league that may be visiting camps or clubhouses closer to your place. Once you know your strengths and weakness and spend 2-4 pursuing your football training and studies, you will get an idea of how good your chances are as a footballer. I would still say keep options open, once you are in your second year of graduation, you can plan accordingly with more maturity and a better understanding of yourself.