NC for this thread.
A (male) friend of mine had a brief and unhappy marriage (now divorced for a couple of years) and two children from it. The mother of the children is originally not from the UK and had asked the family court for a permission to relocate with their children back to her own country (non EU, not English speaking, and very underdeveloped).
His children are his life (without any exaggeration, he is talking about them all the time), he sees them almost every week, and has a very close and loving relationship. They go on the day trips, to zoos, parks and museums, and are really happy together. He also plans to apply for at least a 50/50 custody once they are a little bit older and the court takes their views into account.
He will have a direct access barrister representing him during the process (which will cost him all his savings), but he is currently retraining for a new career and does not earn anything so cannot afford a solicitor on a day-to-day basis. The mother has a professional job (they met through work) and is reasonably well-off, it is not the case that she struggles in any way - a homeowner, has a cleaner / nanny / dog walker, able to afford nursery fees etc.
He asked me to help with all possible arguments why the children should not be relocating abroad (they spent almost their life in the UK, despite being born in that country). Not from the legal perspective, it will be the barrister's job to convert them into the statement for the court, but rather from the children's perspective. He is very distraught now and not thinking straight, this application was a complete surprise for him.