Better option

Question

Isn't is better to do Console.WriteLine("Hello " + yourName); instead of the place holder?

Answer 1

No this is just personal preference.

https://code.sololearn.com/cZAfo3Y9ElXv

Every line has the same output.

OK.
In very detail using placeholders seems the better one. Because string are immutable. Concatenation of 2 strings "hello" and "YourName" creates a new string.

https://stackoverflow.com/questions/16432/string-output-format-or-concat-in-c