why don t we go to the cinema

Hi, I'd lượt thích to tát ask about the difference between those two sentences?

Bạn đang xem: why don t we go to the cinema

1. Why don't we go to tát the cinema?
2. Why bởi we not go to tát the cinema?

Are they the same? Can we reply to tát these questions as follows:
1. Why don't we go to tát the cinema? - That's a good idea (since it's a suggestion)
2. Why bởi we not go to tát the cinema? - Because we haven't got money. (since it's a question about a reason)

Or maybe, I'm getting it wrong. Can the first question be also a question about a reason? Can the other be treated as a suggeston?

Thanks in advance.