Oh, that's easy. Just tell them you will get a corporate job. One that just happens to work indoors. A domestic job since it's in your country, and a domesticated job since society "domesticates" humans to do some type of labour. Then your parents will tear up from such an amazing, foolproof argument, the elders will fall to the ground in anaphylactic shock from discovering a loophole, you get awarded thirty international accolades, and then everyone else claps. Jokes aside, you will probably have to fight tooth and nail to hold your ground. Your parents may in the future tolerate it, but the people around them will be much harder to convince. In fact, if your parents ever do allow this, I wouldn't be surprised if the "elders" start to consider you "a disgrace" and consider your parents horrible at "guiding their children." So do prepare yourself for that kind of negative reaction.