If you want to hold on to your assets and belongings. Don’t get married or go into a civil partnership.
Be careful what you wish for.
In the case of marriage, there are such things as pre-nuptial agreements to protect one’s assets. I’m not sure if such a thing exists for CP. I suspect there isn’t any such thing which would also indicate how unequal they are to marriage.
But prenuptial agreements are still not legally recognised in the UK (I don’t know why not), though it’s becoming a grey area and is due for a revision.
I read somewhere that something like two-thirds of (opposite-sex) couples who marry after having lived together for 10 years or more break up within a year of getting married. It’s interesting that, though of course this couple couldn’t have a CP when they started to live together even if they’d wanted to, similar developments can happen with gay men.
Who cares about this?
So, boys and girls, beware of penniless gold-diggers seeking a Civil Partnership, just as every well-off heterosexual has always had to be wary of the marriage plans of heterosexual partners.