I am going away on a business trip next week for 5 days. My DD is 22 months and nurses 2x a day, once in the morning and once at night. I traveled when she was younger, and she would just get bottles of EBM while I was away. I am wondering if you think she is old enough to understand that while Mommy is away, she gets milk in a cup (so we don't have to drag the bottles out again)? Thanks!