Those studies were conducted by Elizabeth et al. (2014) & Bown and Disxon (2000). They indicate that this appears to be the case, yes. In an attempt to eliminate the influence of socialization in children's preference for toys, they turned to our closest ancestors to check it all out. The results showed that the males preferred and spent more time with toys like cars and planes, and the females with dolls. It seems that socialization is not the only factor at play when it comes to which toy boys and girls enjoy playing with.

All the best to you!