[NumberCruncher]

No one owes you anything. [1]

Your friend and familiy do not have to understand your motivation. They do not have to understand your decision building a product instead of working for a "prestigious company". They do not have to be your friend.

On the orher hand, you do not have to give a fuck about their opinion. The said truth is that there are 7 billion people on earth and you can not make all of them happy with your way of life. But you can make happy yourself.

I read once an articel where someone was asked "And what do you do when the people say you have crazy ideas?". His answer was "I talk to other people!" Do not worry, there are other people out there who understand you. You only have to find them and listen to them instead of the naysayers.

[1] http://www.harrybrowne.org/articles/GiftDaughter.htm