In the preschooler series "Peppa Pig" I met the following two sentences:
- George runs as fast as he can but the kite won't fly.
- Peppa runs as fast as she can but the kite still won't fly.
I understand that in this case won't (=will not) is a form of the modal verb will. If I get the meaning of won't right, it's the same like in the following example sentence from the Cambridge Advanced Learner's Dictionary:
- The car won't start.
But I wonder why not simply to say:
- George runs as fast as he can but the kite doesn't fly.
- Peppa runs as fast as she can but the kite doesn't fly.
- The car doesn't start.
- The car isn't starting.
Are the latter sentences wrong in English? Or do they sound weird?