Like Jamal Wallace in Finding Forrester, I often use others' words to start mine. Perspective on sports parenting never gets old.
Advocacy
Irrational is believing that parents won't or shouldn't advocate for their children. The issue becomes "degree." Parents may want minutes, role, and recognition for their child even more than players. They've invested their lives, time, and treasure to support them. Coaches are transients along that journey. When disagreements arise, that doesn't mean parents have failed.
Crazy Costs
In the 40 billion dollars youth sports industry, "tuition and fees" have become incendiary. Atop the sundae, the "cherry" of game admission prices has risen to unthinkable amounts. Pay full freight and then get taxed again to watch your child play...or sit.
Accessorizing
In addition to participation fees (often thousands of dollars), uniforms, sneakers, and 'swag', a host of other expenses arise - travel, lodging, road trip meals, additional medical costs (injuries happen), sports club or gym costs, personal trainers, et cetera, et cetera.