Quote - Same thing can be said about age.
Why do all Poser women have to be early 20's.
Why do all Poser men have to be 20-25 years of age?

Because that's what sells the most. 

Quote -
Ok, there are some boys and girls, but the 30-40 and 40-50 age group is non existing.

Ok Tony, I'll give you one point for being mostly correct, that 40 to 50 and up age group is almost non-existant. But there are some. More than some. You just have to look.

But many, many characters in this MP and others could easily pass for 30 - 40 and a bit over. Is there some rule that says over 30, or even over 40, we all magically turn to slobs? lol.

Most of the biggest stars in Hollywood right now are in their 30s and 40s, and that age group doesn't look nearly as "aged" as it used to. Probably due to all the preservatives in our food. And plastic surgery. But Hollywood isn't a good place to get an accurate depiction of the standard age look, as many of them do whatever it takes to look as young as possible. And that's because young, tight and sexy is what sells movies, and Poser characters. 

V3 always looked mid 30s or older to me, and many of the characters for her did as well. V4 looks younger, but not by much.

Many 40+ year olds today barely look 30, in or out of Hollywood. Especially the ones that take care of themselves, eat healthy and excercise. I'll be 40 next week. And while I'm a bit overweight, (which I'm actively working on changing and have been making good progress). I don't have wrinkles or sagging skin and most people think I'm still in my early to mid 30s. Which is a bit odd to me, because when I was in my early to mid teens, a lot of people thought I was in my 20s. Tho thats probably due to having started shaving regularly at about 11 or 12. But today, I get "you're 40? wow!" And I don't even work out consistently (but changing that) or do much more than sit here slaving on my PC. I have some health issues that sap a lot of my energy, but you couldn't tell by looking at me. If I actually started working out every day I could push that further down to about 30. Ok maybe 32. 

 

Sidney and Jessi both look at least 30, maybe closer to 35. Probably not a good example, since no one makes content for them. 

Check out the lovely redhead on the banner ad to the left - MRL Elena. I'd guess she's about 32. But she could be 28, or she could be older. 

Or the actress/singer Emily Kinney - who plays an 18 year old girl on the walking dead. She's 29 in RL.