well, its true they might say sell them, but some 
folks like my family say "keep them! They'll be worth even
more later!!" 
..which only happened after I showed them a few money orders... 
Of course, I buy cels with money I make on my own, hence its
nobody's business what I do with it. Might a job prove to 
your parents you are serious and dedicated? that way, its
your cash right?
just a thought.

hope it works out well, whatever happens :)