I have brown hair in game and now it is white, as is everyone's elses. Is it so hard to correct this?
Of course not. You just convince the CS devs to fix it. Maybe you could try to convince them this is a high priority thing

Would it be so hard to make a child character?
If you have people who can do this, it is not hard. My guess of what they should do:
- create small male and female versions of the races. Maybe a good 3D art person can do one in a few days (assuming you are not content with the same but smaller). Of course after that there are all the animations, new versions of all armor, etc.
- adjust character creation so you can select to be a kid. THis requires some new life events (settings person can do that), GUI (2D person for making new selectable options), rules persons (to limit stats and skills), database changes (to store all this), etc.
- new code may be needed to make children be different from adults, by limiting stats/skills, new commands may make kids have parents, etc.
In all this (art, animations, rules, database, code) if someone makes a small mistake, there will be bugs that have to be found and fixed.
How about making the characters have different clothes?
Some art person should make a piece of clothing, and then make that look good on all races, for all animations. You want different clothes? Well, that means more work.
You get the idea.
I hope you do too

. Actually, what you ask is mostly art, which I have not much clue about (and where there are hardly any devs at the moment). For new features coding wise (how difficult can it be to get rid of progression points?) the same applies. TO do things correctly, people need to spend weeks thinking how to do it properly, then implement it, and then repair all the introduced bugs. This is weeks (months) full time, so doing this in your spare time means multiply this by a lot.
For many things, different people are needed (3D art, 2D art, rules, settings, coding algorithms, coding commands, coding event handling, coding graphics handling). If one of those is not available (in this example, probably half of them), it will not be possible to implement. Or someone who is working on many other things, needs to do it.
So even if you can only help a bit in one area, it can mean more progress. If you help settings, a settings person may have time to do rules, a rules person may help code commands, and a coder may have time to take art lessons and do the rest
