Best part of Minecraft is when you finished learning the basics, is that after you can join other peoples servers ( or make your own ) and play with friends!
You can make a town with everyone or live in the same house or cave, or anything you want. Imagination is the limit!
As a warning, I would suggest finding a server with home/block protection.
Some people might destroy or steal what you worked for if not careful. 😀
You can find most Multiplayer servers HERE if you wanna look at one for your taste or with only people from your country.
First time try not to go on a over populated server. It may be too much to handle at first, especially if PVP ( player vs player ) is on.
You thought the Mobs were a challenge ? try fighting a group of “raiders” that have diamond gear with your wooden sword 😀
Here is some tips on Player Vs Player.
Have fun and good luck!
EXAMPLE VIDEO MULTIPLAYER GAMEPLAY