Madoka doesn't hesitate in grabbing onto that hand, at the very least. There's no need to be shy around Tidus when they've spoken enough at this point, and it's not even the first time he's tried to help her.

And in the meantime she can enjoy the height difference, clearly. Who knew that all it would take was a balance beam for Madoka to finally be the taller one?

"I'm just not very good at this.."

But even as she's saying it, she's starting to move. Putting one foot onto the beam, then the next, and then slowly starting to walk over it, one step after another.

Definitely wobbly though, so it's not like Madoka was lying about what she just said.

"It's hard to keep your balance up here!" Even with a Tidus to hold your hand, apparently. But she isn't falling, so that's the good part!