I'm changing from married filing jointly to married filing separately and Turbotax is asking if I lived with my spouse at certain dates. Why is it asking that?

[DoninGA]

To determine if you can be filing as Head of Household instead of the worst way to file when married, Married Filing Separately.

Standard deductions for 2019

• Single - $12,200 add $1,650 if age 65 or older
• Married Filing Separately - $12,200 add $1,300 if age 65 or older
• Married Filing Jointly - $24,400 add $1,300 for each spouse age 65 or older
• Head of Household - $18,350 add $1,650 if age 65 or older