No, I think it's because ESL students are less likely to be confused by semantic and other associations. The tongue twisters are not inherently difficult to pronounce; people make mistakes because they become confused, not because they cannot articulate. Native speakers become confused more easily because their knowledge of the language is more extensive.
Sam's sock shop stocks short spotted socks
If one doctor doctors another doctor does the doctor who doctors the doctor doctor the doctor the way the doctor he is doctoring doctors? Or does the doctor doctor the way the doctor who doctors doctors?
my friends love it when I ask that lol.
The whole woodchuck
How much wood could a woodchuck chuck if a woodchuck would chuck wood? A woodchuck would chuck all the wood he could chuck if a woodchuck could chuck wood.
And the Betty one:
Betty bought a bit of butter
but she thought the butter bitter
So instead of bitter butter
Betty bought a better bit of butter.
>>Peter Piper, the pickled pepper picker, picked a peck of pickeled peppers. If Peter Piper, the pickeled pepper picker, picked a peck of pickeled peppers, where is the the peck of pickeled peppers that Peter Piper, the pickeled pepper picker, picked. <<
Here's the version I know:
Peter Piper picked a peck of pickled pepper.
A peck of pickled pepper Peter Piper picked.
If Peter Piper picked a peck of pickled pepper,
Where's the peck of pickled pepper Peter Pepper picked?
On you to try to repeat and guess. :-)
Not really a tongue twister, but a good way of pronunciation practice:
"We were given a very warm welcome in the village by the wealthy vicar".
i like the cake batter one