When do Japanese write with a brush?

Although calligraphy is taught in school, there are hardly any occasions in our lives today that require the use of the brush.
Today, even for official purposes, writing with a brush is not accepted.
Writing with a brush may be used for the followingoccasions:
when writing your name at formal parties or meetings, when writing your name on special envelopes for monetary gifts given on celebratory occasions such as weddings or births, or on envelopes for condolence money given at funerals.
However, even these occasions do not necessarily require the use of a brush; more and more people now simply use a felt-tip pen.