Have you ever tried to help someone and you were so aure you had the solution but then it ends up more fucked than it was before?
Your parents are probably sure that hounding you will work and they continue to double down on it because it worked for them when their parents did it.
Parents are just people too. They don't have magical knowledge just because you survived to adulthood.
They're doing what they know how to do and they're afraid of you ending up in need. They're not going to live forever and they know it. They want you to be successful, but they don't know what it takes to get there in today's world.
You know they want the best for you.