Well if you want bitcoin no one can stop even your parents,because you can hide it for everyone and no one will detect that you have it if you store it in a safe place with a safe password or phase key,you are also right that bitcoin investment is good if we can just hold for a long time,working is not bad but it will never give you huge profit if you only have a work that will give a minimum salary it is not enough for a daily needs expenses so bitcoin is the key just believe on it and have Patience.
I'm not sure if there is any coordinated way of storing Bitcoin with a wallet unless you are using Bitcoin on a centralized exchanges that will request you to use a string password and probably an additional 2FA which is not the recommended way to Bitcoin. The best way to safe keep your Bitcoin for long term is though a personal wallet and preferably hardware wallet where you have the way to back up your seed phrase and not password except for encryption of login which something personal for the holder.
At OP don't blame your parents for the things you said, I have accepted that any mistakes that my parent made is because they are in their learning phase and they don't realize early some of the mistakes they made and you might probably get there too one day and understand better about their position. Stay strong and get multiple streams of income as possible and buy some Bitcoin you can afford but don't forget to take care of your need first, that's very important.