Where i grew up in the US most kids moved out at 18. I never hard of someone living with their parents past 20, so this is very odd. I personally wouldn't want to a burden on my family but i also had a 30hr a week job from 14 till i moved out. But cultural differences...

Until marriage or turning 30. Whatever happens first.

I was 16 when I moved out and no allowance, ever. It seems strange people twice my age are living with their parents.

It is not really a cultural thing. It is more to do with cost of living and in some cases kids also feel entitled to get everything given to them because their parents in most cases last gen cotton wooled their kids.

I know a lot of adults who live with their parents that have full time jobs but use their money to party up instead of pay rent or save for a house. Only time they move out is when they get married

Not saying all are bad like that. Some genuinely save money whilst living at home for a deposit on a house.

It's got a lot to do with how hard it is to get a job in your area or in your country. In Greece, almost every friend I have (and they're all 30 now) lives with their parents. The reason is that there simply aren't any jobs for them in their field or pretty much anywhere.

I'm currently living with my parents for the first time since the age of 18. I have a uni job, but it doesn't pay much. I could either find a different job that has nothing to do with my PhD and hurt my CV, or tough it out and wait for a better opportunity to arise in my field in another country. I'm glad I kept working here because yesterday I got an offer to work at a better university in another country as a part time lecturer (the money still isn't great, but at least it's an improvement).

Edit: But to properly answer your question, it really depends. There are people who were lucky to study something and get a job in their field as soon as they finished and those people tend to look down upon others who still live with their parents. Then there are others who know people who also struggle with money, so they don't jump to conclusions about those who live with their parents (if it's your child, or a relative, you're more likely to understand that this doesn't happen only to lazy bums).

But overall I'd say it's not very acceptable. As in, if you're trying to date a girl and she finds out that you live with your parents, she may lose interest in you. People with no education are also very likely to think you're spoilt and that you should get a job like everyone else and "grow up". I try to avoid engaging with such people.

Im 45 and still live in mams basement

free housing ftw!

It depends, a lot of my cousins and such lived with their parents till late 20s but worked professional jobs and saved a ton of money and got married and moved out to comfortable life.

Pretty much meant by late 20s they had no student debt and a lot of savings.

However you do sacrifice a much more open life living at home.

I think some people live very comfortable at home and going on your own would mean a huge decline in the quality of life. 

originally from the philippines so i will use that to put variety...

til your parents fucking die....
my bro, his wife and his son use my dad's retirement and my mom still send them money because my brother doesn't make money....

he is... 33 years old!

and i left home when i was 16 to study college! and he is still the golden boy of the family... damn i sound salty :P

how is it like being by yourself at 16 in uk?