School in Gibraltar

Hello, my name is Natalia, I am Spanish and Andalusian, resident in Granada. It is very important to me that my children learn English at an early age, and I thought that the proximity of Gibraltar could be a good option for us. My intention is to move to Cádiz and work in Gibraltar, that is, cross the border daily.

My question is: Can I send my children to school in Gibraltar as a non-resident, but having my job there? I am a single mother and my children are 5 years old, could I argue that I need to send them to school in Gibraltar because nobody can take care of  them at the other side of the border? In Spain it is possible to choose the school in funcsion of your resendence address either your job address.  Thank you all so much.