How rude is it asking a women her age/ her weight?

Depends on her degree of insecurity.

Don't ask their age, ask when they were born.

Don't know why someone would ask about weight.Also,don't know why asking about age is considered rude,wtf society ?!
Logic forsaken.

Seriously just don't ask, it is never ever worth what you will have to pay in the end. They never forget and will hold it against you whenever they feel like starting a fight.

Also from my own personal experience. Never answer "How old do you think I am?" from a drunk woman. No matter how much she badgers you to answer it. No matter how much her friends won't get her to back off and leave you alone. Still don't answer.

1. No matter what you answer it will be bad, if you guess too young she will know you are lying and keep badgering you.
2. If you say to old, in my case she ran to the bathroom and cried. While her friends yelled at me, for answering saying that age.
   So just shut your trap and face the fact that until you get away you will be miserable and badgered. The age thing just never goes well.

Just ask them! they want equal rights

Funny.

I had uneasy experience.

Some days ago, my HR was unavailable. At that time, I was asked to write down the data and input it to the program (new staffs came). Meh, so I did it.

First came, I questioned him his bio no problem. Went well without a hitch.

Second came, here was the problem. The staff was a female/woman. Like I had had done to the first staff, I repeated my questions to her. Name? Answered. Address? Answered. Education? Answered. Married? Answered. Born at? Answered.

Next question, how old are you? She gazed at me and replied with well... how to say it in English, bitter tone? Upset? Needless to say, I immediately noticed the negative difference, but wrote her answer. A few more questions and done. She left.

But I knew something was wrong. I researched and found a thread similar to this on different forum. I'm amused, a woman can be offended by a simple and harmless question. I guess I'm grateful to be a man/boy.

Age is ok, weight is never ok!

Why does it matter?

Age is usually fine, weight is a no no.

In what situation?