Explain to me simple please, why does bitcoin have value?

I get why we agree bitcoin has value now, now that everyone agrees it does, but how did it get value at all?

I mean when it first came out, it was just a digital idea and it wasn't worth anything because no one found it valuable. now we all agree it's worth thousands of dollars.

How did bitcoin get over that hump in the beginning?

I dont get how someone back in 2010 could've offered to pay for their dinner or pay someone with a couple fo "coins" on a website. Why did bitcoin work at all?

FYI I get the purpose of bitcoin, im just curious of how people assigned it VALUE, if this makes sense.