Why is reputation requirements for creating tags, different on other Stackexchange Sites?

Question

I noticed that on different stackexchange sites, reputation requirements for creating tags vary and differ.

Why is that?

Answer 1

There are different reputation requirements for private betas, public betas, graduated sites, Stack Overflow, and Meta SO.

Reputation requirements compared

Betas need different requirements because there just aren't many people with the rep to do anything at graduated levels, especially towards the beginning.