Double first name, hyphenate or no??

We found out Tuesday we are having a little girl and could not be more excited! My 5 yr old son has said since day 1 that it was a girl and I love that he was right! We will be naming her Millie Jayne Hill Rogers. Millie Jayne being a double first name after my maiden name Milligan, and Jayne after my amazing grandmother that passed away in 2019. So my question is, do we hyphenate the double name?? I know it makes it more clear that it’s a double first name, but can she drop the Jayne when she gets older if she wants to if it’s hyphenated? Is it easier just to not hyphenate and just try to make it clear to people it’s a double first name, not a first and middle name? The middle name Hill is after my husbands moms maiden name so none of the names are negotiable to get rid of. Thanks for any and all advice! 🤗