Ugh...Dead beat dads

So the more and more I have to deal with the child support office the more and more frustrated I get and angrier I get with her father. I mean really. The fact that I have to go this route is unbelievable, I mean why can't he just man up and pay some child support. The agreement we could come up with may even be less than what the courts will decide (which I heard was going to be between 600 and 1500 bucks) Look he doesn't do anything else for our daughter, he barely calls her and when he does he speaks to her for like 2 minutes (I'm really not exaggerating I have proof!) also when he does call all he does is make her feel guilty because she doesn't want to go and see him. Do you know he didn't even get her a birthday present or card for her birthday. Our daughter is 11 now and his gift to her was a plane ticket to go and see him?? Doesn't he get it, she didn't want that, she wants a toy or clothes or something not a plane ticket to see her father that she barely knows. Besides he's going to be working, she'd stay with her step-mother who she doesn't even know, I dont think so. I mean I wouldn't let me child go to a strangers house so why would I let her travel 3k miles to visit a stranger? Of course I let this decision be up to her, but she has been insistent in not going. He has vacation coming up in June, if it's so important for him to see her than why isn't he coming down to Cali to see her? Why not use that money for a plane ticket for himself to come and see her. This whole thing is getting ridiculous. Why doesn't he understand that this is not about me or him but about Alyssa's well being. Why can't he just do what's right for her.