Residence card for a minor (15 years old)

[dan1988uk]

Hello, I am EU citizen and my wife is non EEA holding a residence card, next month my wife's daughter will arrive here to live with us (she already got her EEA Family Permit). We will apply for her Residence Card but now I am worried because I don't know how to prove that the kid is living with us. When my wife applied we have bills and tenancy agreement on both names, but a 15 years old kid just arrived has got nothing on her name, so how can I show to Home Office that the kid is living with us? Is it necessary to prove it or it's understandable that a minor will be living with her mom? Thank you

[GMB]

I was in the same situation with my children (aged 12 & 14 at the time). I enclosed a letter from their school saying they were enrolled there as students, which worked fine.