If the facts are as you state them, it is wrong. It is wrong for a parent to steal, period. I believe it is even worse when a parent does something like that to their own child, because they are not only stealing, they are also setting a horrible example of how to behave, and teaching the child to be dishonest. All the while, they are expecting the child not to feel cheated, discounted and/or resentful.
Being poor and struggling financially does not justify stealing.
What I'm having trouble understanding is this...what kind of lifestyle is your kid's dad trying to maintain that can't be supported with the income from 2 jobs plus child support? That blows my mind.
As a single parent, I supported two children and myself on $6.00/hr-40hrs/week at times, (with NO child support) and I always paid my bills and we always had enough to eat. That was in the relatively high-priced Twin Cities area of Minnesota. Based on inflation, that would now be the equivilant of one 40hr/wk job at $10.50/hr in today's economy.
During those times, we scaled back our lifestyle to fit my income. One of my daughters was a young teen, and I encouraged her to babysit and do other jobs for her own spending money.
We didn't have monetary luxuries at that income, but we did all kinds of free activities..played outside, went to the public library, went swimming at the local beach, went to free exhibits at galleries and museums, watched the local and town league baseball games, went to all the free plays, musicals, concerts and ballgames at the local high school, went to all the street festivals put on by our local Chamber of Commerce, walked or took public transportation rather than pay for expensive parking, etc. When we did spend money on entertainment, it was usually for a soda apiece while we were doing some otherwise free activity. We entertained friends at home,...board games, cards, etc.When we shared meals with other families, it was pot luck. With some thought and planning, people don't need all the luxurious things we spend money on.