I think it varies hugely from party to party and from area to area within the same party. My own personal experience is I avoid the top dogs, even in my own party. They never seem genuine about anything, and are all about appearances - I am probably doing them a disservice! They are probably just good at being media savvy - but I am not, and don't fit in with that crowd at all.
I know the people I have been active with on various local projects and campaigns. I do enjoy a natter and a drink in the pub after. I hope we are not cliquey. I think for me I don't have any serious personal ambition, so it isn't a case of being best known, or getting competitive. Its just, am I a good person to represent the party in this constituency, this is who I am, the party decides. If so, great, if someone else is better, also great, I would support them whole heartedly.
You apply to the leaders, but your pitch goes out to the whole party, and the whole party can vote - in my case I was unopposed. If I had been opposed, I would probably have stood down - like I say, I am not competitive or ambitious. I want the party to do well, and I want my pet priorities to be at the forefront of what we do. I can work for that from a back seat or a front seat.
I think there are barriers to applying to stand as a candidate. There should not be but there is. For example, I mentioned earlier that we would have to move if elected, as you are supposed to have proximity alarms around your residence, which I can't have on a ground floor flat. So people not willing or able to move would have an issue there.
And of course, I have time to be political. I work part time. I have a sympathetic employer. My mortgage is paid. At other times of my life, working full time, raising young children or with a mortgage to worry about, I didn't have time to be political.
And as a single mother, I had very little opportunity to be politically active when I was younger. No childcare for one thing!
edited for grammar!