When do we assign gender to products unnecessarily?

One example: this shirt.

It’s apparently a boy’s shirt.

Why? Because it’s dark blue? Because it says “Star Trek”?

If you think women haven’t always been essential to Star Trek, then I refer you to D.C. Fontana, Bjo Trimble, Majel Barrett, and Nichelle Nichols.

This is a child’s shirt. There is nothing keeping the seller from having a category called “unisex.” This shirt would fit right in.