Blocking a ill girl’s religious convictions (tho uninformed & clueless) or submitting 2 manipulation?

It's Muslim holiday Ramadan. Muslims above age 18 R to fast for about 30 days, not eat anything or even drinking any water. Eating is only at night. They R to avoid contact with opposite even a peck on the cheek. No watching television—even Sesame Street, no music even Mozart. My husband and his kids are practicing Muslims. I’m walked away from all organized religions long before I met him and he knows this. The youngest & only girl (now 9) does not participate at this point & isn’t expected at her age. She & I are home alone. After eating almost nonstop since 8am, going online (under my supervision) watching cartoons, etc. she says “I'm doing Ramadan” & turns off the TV! I’m watching PBS but, I let it slide. I can see it on their website. I want 2 play clical music. She says that's “just not right" & looks really sad. Worse prob is the whole family practices their faith like this. How do you handle cafeteria style religion with side of self-righteousness & hypocrisy in others?