Tiffany believes her content is popular because it's relatable and also credits the modeling for helping her improve her self-confidence.
She's three years younger than the twins and starting at age 4 she first appeared as herself in cameo appearances in the twins' straight-to-video films.
If she landed Spy Kids, she believed she would've been type cast and wouldn't receive roles that were serious in nature.
They acted, made movies, and, later in life, they became entrepreneurs.
She didn't feel sad losing the part in Spy Kids because she knew there was a role out there that matched her wants and needs.
She even had some backup plans.