What problems would you expect to face if you were a single parent with few skills and very little money?

If you mean in todays world, there would be the usual,

-financial struggles (usually)

-All past sharing of duties on one parent.

-Nobody to share the joys and difficulties of parenting with

-Few breaks from children.

-One would be exhausted from working low paying jobs and coming home to a second job of raising kids all by yourself.