[Grammar] than did their parents.

Hi dear teachers!

Are the following sentences both correct?

Today, The people are living longer than did their parents.
Today, The people are living longer than their parents did.

Thanks.

Nathan Mckane said:

Today, [STRIKE]The[/STRIKE] people are living longer than did their parents.
Today, [STRIKE]The [/STRIKE]people are living longer than their parents did.

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The first is rather formal, the second far more natural.