Lego bricks. Lego pieces. Boys of Lego

Is not Lego plural

Like a kid would say “Do you want to go to my house and play with my Lego?”

Use it in a sentence where it’s plural and makes sense

I love playing with my Lego plastic bricks!

I love playing with my Lego!

I love playing with my Legos!

So everyone you know in person says the second one?

“I play with my Lego often”

LEGO is a trademarked name

Correct way to talk about Lego bricks is to say Lego bricks

“Pass me all your Lego!” Is not a correct sentence. “Pass me all your Lego bricks!”

If there were 15 Lamborghini cars in a parking lot. You’d say “That’s a lot of Lamborghinis”

Lamborghini doesn’t have to worry about Lamborghini becoming synonymous with “cars”. So Lamborghini doesn’t care.

If everyone keep saying “Legos” for “Plastic Bricks”. Lego could have a trademark situation on their hands, so they try their hardest to stop people calling the individual plastic blocks Legos.

It being plural is like a myth.

I have many Lego. I enjoy playing with my Lego. My Lego makes me happy.