Okay, let the kid cry as much as he wants xD
ESO is a really good game, and you can enjoy it playing solo.
Although, if you play alot, you'll get to a point where you need to be in small groups to continue.
ESO, with the new expansion, has a mix of PvP and PvE which is really nice because you can play with a couple friends, just farming some monsters
But since it's in a PvP area, you still need to be careful of other players

Still, if you really don't want to play ''online'' you can still enjoy a great part of the game.