He can make them, but there are several sites around the web where you can get tiles for free.
You don't even know basics I'm certain though.
How can you assert that he doesn't know basics? Also, basics of what? Programming? Graphic design? Sound? Music? Game design? AI? Posting?
I'd still recommend focusing on building your skills before tackling a game.
You have really got to stop acting like you know everything, because every time you say something it is normally wrong. For example, how is he going to build his skills of using Tiled if he doesn't learn to use it to begin with? He can work on more than one skill at a time.
Thanks for all the posts guy! But the kind of tiles I am looking for is like one with sand, wood, trees, and like curved blocks, and if there is one I need a vent that pushes air, but I have searched and I cant find anything I want....... Is there one but I am just missing it? Or how can I make a tile?
Generally all you need is some placeholders until you can get a artist on the project (That is if you have no artistic strength yourself). So just use some placeholders off the internet until you have a functional game then start looking for a artist to join the project.
https://newgrounds.com seems to have a lot of artists looking for projects to work on. Along with a bunch of other sites.
The kind of game I am wanting to make is one that you are not looking at your guy from the birds eye view you are looking at him for the side so all you can see is him going left right, crouching, and jumping, so how would I make a map like that?