I play in some free tournament leagues and poker rooms with lots of soft players and tourists. Most of the tournament buy ins are under $100 so the chances of me playing against people who have no idea what position is, is more than likely. So how do you play position against players who don't know anything about position and are all over the place ?
First, you may be making a mistake thinking the players don't know what they are doing. If the stakes are low and there is no other game in town you may be playing against people who actually wish they were playing in larger stake games. As a result, they are going to play loose and aggressive because they don't really care about losing their measly $100 buy-in. In a local poker room here I once saw a player in a $44 buy-in tourny literally get up from his seat, leave his large stack behind, and go sit at the newly opened cash game table because that's what he was wanting to play, the higher stakes.
Second, "playing position" is about your hand selection, not your opponents. Playing position means you play tighter or looser based on your position in the hand. It's a way of giving your good hands the best chance of winning and your bad hands the best chance of getting out of the hand without losing chips.
That said, if you are playing against people who don't know anything about position then they won't respect you when you bet 5BB "out of position" and will call just as much as if you were in a great position. This means you can't
bluff assuming they will understand what you have and fold to it. You may be able to bluff based solely on position when at a table full of premium players, but not at a table full of players who are playing loose (regardless of the reason).