Are both parents identifying as trans?
One of them is terribly young to be the parent of a 5yo.
I was reading it that 27yo Greg is the person who gave birth to Jayden, but now is seen socially as 'Jayden's dad' & that Greg is now in a relationship with 21yo Jodie.
Nowt wrong with a 27yo being involved romantically with a 21yo, obviously, but if they're both the biological parents of their 5yo child it suggests an initial relationship aged 16 & 22 at most.
Or, alternatively, Greg is a transman who now has an unrelated to their child younger female partner & they're raising Jayden together. Again, nowt wrong with that per se, but it sets up a very different power dynamic if the older partner is the parent & the one barely out of school herself is the 'step parent'.
I hope it all works out for them, but I simply can't agree that 5yo Jayden is deciding all this for themself, poor kid.