A-Level in a language spoke outside of home

[PheFe]

This is a little complicated and I'm asking on behalf of my partner and his daughter.
My partners daughter's mother is Russian, she hasn't been really in her life since she was about 4 but partner put a lot of effort into learning Russian when his DD was born. His DD has continued learning herself (I think as a way to be connected to her heritage) and obviously her mother exclusively spoke to her in Russian when she was around. She is fluent to about a B2/C1 level, she got a 9 in the GCSE Russian without school support, but did have to study outside school a lot to get used to question format etc.
His DD is in Y13, already doing 4 A-Levels (Maths, Further Maths, Economics and Politics). Her school have her down to do A-Level Russian. She is saying she isn't sure though if it's worth the effort, as again some studying at home would need to be done.
She also plays sport and have a part time job so pretty busy!!
Is it pointless to take time out to study for Russian A-Level when it's not massively relevant to her degree choice (economics) or should she go ahead and do it?

She also thinks she may need a tutor this time but that could be arranged.

She could easily pick it up again after her A levels. 4 A levels is a lot of work and time. I would put sports and hobbies ahead of the Russian tbh. Many universities offer a language course alongside a degree in something else.

She is in year 13 so I think it is far too late. MFL is my subject (not Russian! haha) and the AQA A level includes 12 topics which will be examined in the speaking and also language exams - for other languages these include political and social issues (immigration, fall of the Berlin wall, Francophone music, that kind of thing) and detailed knowledge and research is needed.

In addition the speaking exam requires an individual research project and the candidate has to speak and answer questions on this for about 12 minutes. Again, a lot of research is needed.

Then there is a paper where they have to answer a question about a book and another about a film in target language. I just don't think there is time to cover all that - she basically has about 10 weeks until the speaking exam to cover 12 topics and an IRP.

Tbh what is the point of the A level? She will be more interesting to employers for having Russian, but given that she can honestly say it is her mother tongue they won’t care that she doesn’t have an A level in it. They will assume fluency which is probably if a higher standard than A level. Equally she won’t get credit for doing 4 A levels as they will think the Russian was a walk in the park given it is her mother tongue. So I wouldn’t bother. She should just keep up her language by listening to Russian radio/reading Russian books etc.