Yes. It's perfectly fine if u have chosen so. So many people switches their career after 12th. Infact economics is an interesting field to pursue career in. So you are going good. No need to worry at all.
Good Luck!!

Dear

There is no harm or issue if you choose Economics Hons. Students from science field choose different career option to diversify their knowledge, iq level and specially use their analytical skills to obtain new knowledge and skills.

All the best