Probably can't reach the pedals.
He could also offer a deal on boob jobs with each booster seat, with the marketing slogan "make your boobs a huge as my ego".I think he is missing a trick, maybe he should market and promote the "Bernie Booster," a designer booster seat with his face on it, and the logo "Sit on my face for safer driving."
"I'd rather have ten," Ecclestone said in December. "I never wanted 12.
"It's just that ten is easier to handle, for the promoters, for transport. We'd rather have ten - so long as we don't lose Ferrari."