I think you really have something in your mouth, gold coins or
what.
Just don't want to open our mouth, Just SAY it!
Instead of thinking of what your dad will think and fear of
disappointing him why not think about yourself? How would he feel
when he don't see you carrying the bag he bought for you?
Would it be altogether a better solution if you would have in the
first place let him know that you can get the money and buy it on
your own? or you can join him and get the bag you like while he pay
for it. 
i know this damn well..i always tell them i rather
buy it on my own. in fact my ma didnt buy 1 for me because i told
her i wanna buy it on my own. get this straight. i go buy with him,
what i want he sure say no. what he wants to buy, i dont like, alot
of times we got conflicting tastes.
I really think it's a win win situation.
You just didn't want to because you didn't want to compromise your
ideals about why others can do this and that, why are you still
stuck in a family which treats you like a little boy.
You can make the difference. Your decision and perspective can
change alot of things.
i dunno waht to say abt this.
The prob doesn't totally lies on your dad. No fault in this world
only lie on one side.
My friend, i'm trying to tell you that it's no use claiming to know
this and that in the family and yet wanting your own ways. Only
spoilt brats do that. If you are one...this is for you.
If you're not...read on.
It'll just make you resent your parents more.
Grow up! Really...my heartfelt advice to you.
How are you going to show them you've grown to a young man???
By your school results? Your abilities? By what?
I learnt this.
By maturity....if you really want to get over your parents goodwill
for you. Grow up...and appreciate their concerns over you.
Then gently decline their offer....and tell them about your
thoughts.
i always say i rather do it on my own. i have been
doing this for years ok?!
Speak like a adult to adult. Since you said you think you learn
more thing then them? You don't have to prove anything. Proving
you're somebody will only make you a childish loser, and the end is
frustration. Learn how to decline(gently) and see how you go about
doing on your own. That's when your dad realise that he need to
respect YOUR decision.
It'll take a long long time for your dad to see the point....but
it's worth it. Really, i have been thru it.
my sis freq argues with them because they tend to
dismiss our ideas and suggestions so easily.
Your concern is over a bag...and on top of that, over your parents
decisions over you which made you really upset.
i have mentioned this before. the bag is not the
subject, ok?
Their concern is YOU. Not about what you do or whatever you want to
prove. But you...all that's in their mouth may be things so
uncaring and outward. That's because they find it hard to express
care and concern...come on...you are sensitive enough to know all
this.
Maybe because of their background which made them
this way?
sheltering me to the extend i learn abt alot of
things outside the family is not the way for concern.
Learn to work with them towards a better family. That's a true test
of being a grown up. Have you really grown up? 
Do consider what i have said.
MC's Quote:
In Life. Some knots could be solve in
one conversation then years of frustrations.
honestly i think while most parts are food for thought, some parts
of yr reply is abit insulting.