First post on the GCSE forum. Feels just yesterday I was on the 11 plus forum (Time does fy

)
I was hoping for some advice on the topic of additonal GCSEs.
DD will start Y10 and attends a grammar school and has chosen her 11 subjects this year. However she has recently found out that a large number of her friends have been doing private GCSEs outside school in computing and MFL. She now feels a bit left out.
She now wants to do a private GCSE in Spanish (her teachers have told her she is very good and is already at GCSE standard). While I am happy to support her endavours and pretty sure that DD will do well I was not sure of the need to do an additional GCSE.
So here are my queries:
- Does an additional GCSE help A Levels or Universiy applications OR does it just give students bragging rights
- Considering that the school is planning to do the entire GCSE syllabus in 2 years would this put additional pressure on my DD if she takes an additional GCSE in Y10 (Note she has not yet started preparing but has done a few GCSE papers and appears to score well).
- If she is planning to take Maths at A Level is she better off doing an additional qualification such as Further Maths
Appreciate any and all feedback.