The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
I think Lego castle sets and Disney princess products reinforce the gendered roles of chivalry in that these toys transports kids to an era of kings, queens, castles, and chivalry, making the kids use their imagination to play and find different roles.
I think these ideas still persist in the modern-day because kids love to use their imagination to play games and get involved in the role they are assuming in the game. This topic of medieval times has always been very attractive because it includes the idea of a hero that has to rescue people in need from an oppressor or bad guy who makes the town suffer. That is why the hero must save the kingdom to help the king and marry the beautiful princess who lives in the castle.