Does the hard pen calligraphy signature require the writer's age?

Hard pen calligraphy does not require the age of the writer when signing.

Instead, you need to write the date, first write the name, then write the date; Inscription: ancient letters, calligraphy and painting all have inscriptions, and names and dates are written vertically with a brush.

It is used to show the giver and recipient when giving gifts, and it is also a form of expression of calligraphy art. At present, many people sign official documents and notes, which are generally written horizontally to show their legal effect.