I like frozendaisy's comment.
Many, many people are unhappy in relationships but you don't necessarily see it when they are out and about.
I feel it is possible to learn a lot about yourself when you are single. I have very fond memories of being single when I was younger - no-one to report to - no-one I had to be there for a partiular time for. I could focus entirely on my job/career/interests.
I did further quals consistently but when I became a single parent ten years ago, everything I did required juggling - I even managed a university degree but it was bloody hard work - finishing essays at four in the morning etc. There are upsides but I never feel as if I can just leave housework/finance planning etc as I know what it feels like if it all piles up and someone in the house is ill etc.
That said, I will be single again in a different way before too long as DD is going off to uni in 16 months time.
It is another fork in the road in life. I actually don't know whether I ever want a relationship again. Like others I think there is a lot about being single I really like.
One of the main things is learning how to do things by myself, completely by myself, things that I am afraid of or think I cannot do - and then doing them and gaining in confidence because of it. I like that a lot.
As for not having someone to 'help' - well I guess in an emergency my DD is my next of kin - but I do find in life the 'help' that you get from a partner or a potential partner usually comes at a cost.
How many stories on here about unequal division of labour in the household?
How many stories on here about someone who has given up their job/career/missed opportunities for their partner only to find it didn't work out?
Was it Lady Gaga who said?
A career doesn't wake up in the morning and decide it doesn't love you anymore...
We will all be on our own at some point in our lives. Why not enjoy it?