I think you should wear whatever you feel
comfortable in. Everyone will have opinions on whether you should wear it or not. But it's really up to you.
Personally, I would never wear heels with jeans
anywhere, but that's me. At Disney, if it's cold enough to wear jeans, I wear them with athletic shoes/sneakers. And I'm comfortable.
I must admit that when I see someone wearing heels at a themepark, I often wonder
why? The sad thing is that I see many who don't know how to walk in heels.

Obviously, they don't have much experience with them. Otherwise, they would know how to walk in them. So I cringe

at the pain they must be in as they manoeuver through the park's uneven ground. I don't think that would be a fun vacation.
So if you're comfortable wearing heels, then wear them. Just be prepared with an extra pair of shoes just in case you realize it's too much walking for heels.