Do you think Kate would have waited to so long for a proposal from William if he wasnt Royalty?

Why do you even care, anyway? What she did, or did not do with her 20s is none of your concern - it's her life, not yours. Kate gambled on the right guy - and won. How many unfortunate women have waited decades for a guy who was worthless? Some jerk who is already married to someone else and who promises he'll get a divorce but never does. Kate is no fool, and she is no worse off than someone who spent their 20s in University on her profession and then married some guy and stays home.