I noticed that my daughter was really interested in boy stuffs like toy cars , robots and toy guns . Is that normal and is it okay to let her play those ? Photo source : (https://www.radiozamaneh.com/u/wp-content/uploads/2015/02/girl-playing-with-cars.jpg)

For me it is okay. Gender specific programming is not something a toddler knows but is learned from the parents. So as long as my daughter enjoys playing those toys (except the gun), it's okay with me.