help please

after asking around i decided which secondary i wanted to level with... i decided monk was a good choice for my warrior... this was confirmed by a level 20 on this site that said i could just change it later... things seemed good.... then i make monk my seconday but for some reason the red text only registered in my head after i clicked ok... it said i cant change my seconday at any point later in the game... Uh im confused, can i change it?

Most people are level 20, it's not special.

The red text lies, you can change it later. However, it's not until much later in the game that you can do so.

Yes, you can. The only thing is that you have to be ascended, which is very close to the game.

Quoted to place forgotten words.