Quote only strings and not numbers

I'm parsing the following file (quoted strings, non-quotes numbers):

name,age,city
"Chirstian",30,"Hamburg"

The option dynamicTyping detects name and city as strings and the age as number. If I unparse, I have two options.

Option 1) set quoteChar: '"', which results in:

name,age,city
"Chirstian","30","Hamburg"

Option 1) Skip the option `quoteChar, which results in:

name,age,city
Chirstian,30,Hamburg

I recommend an option onlyQuoteStrings, which applies the quoteChar: '"' only to strings, but not to numbers, similar to libre office save as CSV dialogue (option quote all text cells):