It's so easy to INSERT A DATE PICKER to enter dates in a Google Sheet!
If a date has already been chosen in a cell that has the Date Picker, you can still double click on the cell and the Date Picker will appear so that you can select another date. Also, when you insert a Date Picker, the default format for dates is like this example - 2022-09-02 for September 2, 2022. If you want a different format, you can format the cells while you have the cell or range of cells selected. Just click on Format, hover over Number, and click on Date for 9/2/2022 format or click on Custom Date and Time to choose a different format.
