That’s how it appears to me. You can think I’m being unfair but I bet there’s a lot of people who would find spending £80 on a pair of Ray Bans whilst on their way to any holiday never mind Disney to be far from the “I’m so tight with money” impression she gives.
£80 is about $100 which could be someone’s entire holiday budget when you consider meal plans give you every meal a day and even give you snacks.
And yes, cars can make life easier but it’s still a couple of hundred quid luxury when buses exist (even ones that go outside of Disney!)