My opinion on the matter - bad idea to do a subject just to please your parents. Do what’s best for you. You might be a little on the late side for a BTEC but definitely worth asking.
Incidentally I dropped A Level English Literature after a few weeks to switch to English Language (it was more relevant to my eventual degree in languages). A few missed weeks made no difference as I enjoyed it so much, and I ended up getting an A 😁