It's a really interesting and broad question.
Rather than a binary of "Rubbish partner draining me" vs "Perfect independent single life" I'd say my experiences are somewhere in the middle.
It is nice being independent and not having to be accountable.
I'm not hopelessly romantic and don't tend to get overwhelmed by emotions with men.
However, not everyone has a great circle of supportive girlfriends or a community or family.
For basic practical support, some people have a partner figure as the primary person.
I've not had perfect relationships by any means (I'm not perfect as a human or as a partner myself).
Looking back, it's normally a partner who is doing the house moves and the care when I'm ill and keeping me fed and housed if I become destitute or if money is tight.
Not friends.
Plus doubling up finances with someone you can bear to live with can open up more options.
Perhaps I'll have an independent "gentleman companion" as I get older for mutual friendship and practical support!
I think in the western world (Germaine Greer is good on this) there's too much confusion between romantic love and a fairly pragmatic, contractual view of relationships in which finances and duties are specified.