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There's a basic false assumption here. You plan to be healthy and well off so long as you both shall live. What happens if Piper gets MS or breast cancer? You aren't planning for that, are you? Or maybe you'll be in an auto accident and disabled. Or have a heart attack or stroke. Or god forbid, find yourself without the money to enjoy life's most important THINGS.
Life can't be planned but must be lived. The self indulgence and self centeredness echoing through this essay are astounding and sickening. Read it out loud to yourself. Can you stand yourself?
There are people who are happy without a partner or children. Maybe you'll be one of them, but the level of doubt you entertain suggests not. What you're expressing is really a fashionable position I've seen people regret deeply when they start to enter middle age and realize life it's always youth. Then it's too late.
And no, neither men nor women can do it all. Whatever you choose, means other roads are untraveled. As a famous poet once put it.