But this is the thing - i think that once the scales have fallen from your eyes about the man you're with, you don't really want to date men in their 30s - or 40s, or 50s. Not any of them. Because they all come with the fundamental design flaw of male privilege, which may be latent or full blown but will feed into your interactions with them at some point.
Sex? Most women are better at sorting themselves out that a man will ever be. Plus, for some women, it just ceases to be an area of interest, at least for a while, during menopause.
Companionship? Women are far better than men, on the whole, at meeting, making and maintaining friendships. Women are most often better conversationalists because they don't just broadcast and are capable of listening to others, learning and adding relevant remarks, rather than just impatiently waiting for their moment to speak their brains. A woman with a good circle of female friends won't be lonely, with or without a man. And not having their socialising inhibited by the needs of a man will allow them to nurture their friendships more.
Money? This is the kicker for a lot of women; which is why all women should maintain their earning potential, as both safety net and freedom to make choices. And to have a happiness-focused rather than status-focused outlook. I for one would be happy with very little, as long as I could pay my bills and had a safe roof over my head.
I think the majority of hetero relationships I see, the guy is getting much more out of it than the girl. And this is backed up by the research that shows Married men are happier than married women, and unmarried women are happier than unmarried men. Divorced men and married women have the highest rates of suicide. That should tell you something about the 'balance' that exists in most hetero relationships!