their love of cooking might not be enough commonality for them to be friends. Both are determined but have completely different views and goals. Rapunzel is adventurous and likes trying new things. Tiana doesn't want anything to do with something taking up valuable time she could be using to work for her restaurant, and she doesn't like trying new things. Tiana is more serious and mature and might think Rapunzel is a bit silly and childish. Rapunzel would think Tiana is too grounded and not fun, though admire her independence. Tiana wouldn't understand why Rapunzel is so sure the lights mean anything, let alone for her, as she doesn't believe in that stuff.