Well not to put too fine a point on it (never a fault in my writing) I see little difference between that and parents that would allow their kid to be in any kind of trans documentary. The point is not about 'let's help this kid' the real point is 'God, I'm such a wonderful, caring, contemporary and liberal parent. Look at me, look at ME, LOOK AT ME!" That's pretty much what I see from watching pageant parents (it's all about them, most of the 'mothers' are either fat and butt ugly, or more plastic than Barbie) and they are living through the kid, the kid is the spotlight that will shine on them and they will be wonderful at last. I know that's damn true about stage parents.
The worst part about the stock shots in TG stuff is that it (I'll duck again here) reinforces the absolute worst and most regressive notions of 'boys do this/girls do that' that is available from the most retro and repressed sources imaginable. "Oh see, he must be a little girl, s/he wants a pink room.' Hell, it's a color choice not a fricking lifestyle.*
It's all meant in a rather lame (everyone is seeing through it) to reinforce the binary and ignore the very real social revolution that the entire trans deal is just a part of.
* - I once painted my office in a awesome shade of lavender. I got remarks ranging from 'gay pride' to 'Prince tribute?' Reality is that we had two cans of lavender left over from a production, a color not used in the rest of the theater (so we would never have a need for it) and my budget was zero, so it was lavender or black.