Betty has following options if she doesn’t want to pay additional taxes and the penalty:
Use the money to enroll her child in a 529 apprenticeship program. This may include a partnership program with a company or an apprenticeship program, which may include a program with health care industry (SECURE Act). The caveat is that it has a lifetime limit of $10,000 per beneficiary.
Change the beneficiary to herself and use the money for her own education. She can make herself the beneficiary and use the funds to attend colleges to improve her career.
Betty can change the beneficiary to another child, another family member (nieces, nephews, in-laws or parents), herself or save it for your grandchildren.
Make her niece the beneficiary since she’ll be attending college soon.
Leave the money in hopes that she may have grandchildren one day.