You can tell people with little experience from their inability to accept tradeoffs.
If you want a girl who is down and ready plug and play sex wise either another man has trained her or she has trained herself with many others. So you can’t have retrospective jealousy, you chose her because of that.
If you want a pure girl who is feminine, you will have to accept that you will have to train her and that she will be passive as fuck, so don’t expect any autonomy from her, or even any half-decent sexual skillset from the start
With the first chick, in order to register you will have to either be better sexually than most men she has been with, or provide the emotional value she did not have as much from her past.
With the second chick, you will have to have patience, be an actual leader, and compassion for her situation, alongside making her feel more safe (=emotional labour) which will be heavier than the first one.
Once you know the above and you understand what makes the more sense with you as a guy in terms of what you want and what you provide, you will have better satisfaction with your choice.
It is when there is discrepancy between what you want and what you can provide that conflicts arise, and the subsequent disappointments.
There are two types of guys I found:
The ones who find the best sexual experiences early with a chick and get bored quickly of the sex.
The ones who find the best sexual experiences late when there is more emotional involvement on their end with a woman.
For the first type - the first set-up is more suited
For the second type - the second set-up is more suited
Whether or not marrying a woman you're not "crazy about" is a trap depends on what a guy means by it.
Not the most chemistry you've ever had with a woman (though still good), but amazing compatibility? Dumb to not marry her. You have a woman you enjoy being around and building with. You can work on creating more tension, and compensate by seeking more novelty within the relationship.
But low chemistry, or middling chemistry AND compatibility... you are definitely settling. You may not regret the kids that come of it, but you'll feel trapped and will probably crash out at some point.
You can compromise on upside with a woman, but you can never compromise by going beneath your threshold. There's a difference between accepting tradeoffs between women, and accepting something you didn't really want.