Today 09:54 Emboo19
"So is it experience DeadGood not age. What about the 30 year old whom I was showing the ropes to at work, as she'd never worked so had less experience than 18 year old me!"
I still think you should speak to her more respectfully than, say, the 16 year old work experience student that you showed the ropes to last week.
Not that you should speak rudely to the work experience student - of course not. You should be helpful, professional, friendly. But the tone would not be the same.
I think you should assume that the 30 year old has been doing something in the 12 years since she was 18. Studying, looking after a parent, raising a family, traveling - whatever it is, she has more life experience than you, and that should be acknowledged.
Basically, you can choose to treat her the same way you treat a colleague of your own age. But you will get further in life if you show a little respect for people who are older than you. I do not think it is a bad thing, can't really see why people have a problem with it.