I feel like this rise in "trad" appeal comes from telling people that they can choose to never deal with certain hard parts of adulthood as long as they only do their traditional half.
Men, there's no need to ever bother with cooking or cleaning or nannying your own children (all degrading feminine work) as long as you assume the role of the protector and the household head who can win the bread and make the decisions.
Women, there's no need to learn the hard and complicated things about taxes, mortgages, utility bills and work (scary masculine concepts) as long as you focus on looking beautiful, keeping the house in order, and mothering your husband's children.
But actually, men who don't know their children's doctor information, or birthdays, or know how to change a diaper, or how to do laundry, or how to grocery shop, are NOT cute.
And in fact, women who don't know anything about their own finances beyond "teehee my husband gives me an allowance" are also NOT cute.
I get why these things are appealing, because they come with this false promise that you can fall into a role and never ever half to think about half the hard parts of adulthood.
But if you're an entire adult person, then you do need--for yourself, for your family, for your children, for your safety--to know these things. Especially financials, because if your partner leaves you (or if you need to leave your partner), you need to know your money and your bills.
When you ignore one half of these in favor of just your traditional gender role, you get men living in squalor whose children no longer talk to them and women in total financial ruin after their husbands leave or die.
Sharing responsibilities to ease a burden is fine. It makes sense. But that is not the same as closing your eyes entirely to half your life, thrusting that responsibility entirely on someone else, which could leave you dangling off a cliff if that person ever leaves