The thought of titanium white makes me think of Vincent Van Gogh. I once heard that he was so hungry, he used to eat his white paint. Titanium White contains lead, which allegedly contributed to his deteriorated mental state.
To young artists: Don’t worry about brand names of materials and just start creating. You can use almost anything to create with. Hard work and dedication will make you a better artist, not the name on the side of the utensil. As you spend more time.