(UK resident, born and bread) Yes this drives me absolutely mad. I'm a poor risk taker and can come up with all those reasons something's a bad idea, but when I've made up my mind to take the risk I want supportive people around not people who would rather you never tried anything outside their "comfort zone".

And the problem runs in families. This is not therapy but every time I talked to my parents about an idea it would be dammed with faint praise or I'd be told I'm wasting my time. It's taken 20 years to work out that the more they dissed an idea is the better it actually was.