I sometimes ask blunt questions in the hope that I get honest answers. As someone that’s been involved with investments, retirement planning, stocks, bonds, mutual funds and much more for the last 40 years (off and on), I try to provide the very best answer/response I can.
So, my advice is to have her apply for at least one credit card in her own name so she has her own credit history and everything is in just your name. In very blunt terms if something happened to you tomorrow, none of the credit is hers. All the accounts are instantly closed, so are all the bank accounts (even if they’re joint accounts with a survivor beneficiary) and more. Just food for thought. If I’ve offended you in any way, my sincere apologies.
So, the only way to proceed and keep everything in your name, is to make her what Apple and Goldman Sachs calls a >Participant.< Everything is in your name and she has no legal obligation to pay on the account.
I linked below an Apple Support article on Apple Card Participants and Co-owners. You want to read about Participant accounts. If you do co-owner she’s applying for her own account and she be equal. Neither one can leave the joint ownership, it’s no longer your account. Each co-owner has equal rights. You’ll see each other’s purchases and everything.
Set up Apple Card Family and add a co-owner and participants - Apple Support
I’m happy to answer more questions or you’re welcome to follow the instructions in the article. I hope you have a great evening and again I’m sorry if I offended you in any way.