I came along software applications which would need the usage of double quotes for the distinction that provided data should be handled as text strings.
So you would probably require all non-numeric values to be enclosed by quotes, no matter if it contains spaces?
The answer depends on the configuration for data import tools.
Example: spreadsheet applications
What about other data types (booleans, etc.)?
Further data type indications can eventually be omitted, can't they?
Regards, Markus