孩子在英国申请法国签证到底需要双认证吗?

大家好。我在英国给孩子申请法国签证,网站上的要求说是
Minors

  • Birth certificate or copy of family book.
  • Travel authorization signed by the holder(s) of parental authority in the forms required under local law, along with a copy of his/her/their identity document (if the minor is not travelling with his/her parents or guardian).
  • Where appropriate, proof of parental authority.

我填了是中国护照。没觉得说要认证公证什么的,不像意大利签,明确说要公证认证。到底要不要,办这个很花时间。最近有哪位有这方面的经验吗?