I think you are getting confused about who your 'family' is.
There is your wife. There is your son. Then there are 7.34 billion other people to be used as human shields to benefit and protect your wife and son. You may like some more than others, but they are all disposable human shields compared to your wife and son.
If money is an issue, stop going out altogether, and invite them all over to your house for a dinner every couple weeks. You will save 80% and have a better time when you are with them.