training wheels

American  

noun

(used with a plural verb)

1. a pair of small wheels attached one on each side of the rear wheel of a bicycle for stability while one is learning to ride.

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Example Sentences

And as the company ramps up, Musk said Tesla could shorten the time it keeps safety drivers in the car to “maybe three months” before taking off the training wheels.

From MarketWatch

For people who love that kind of filmmaking, “Sneakers” is an unlikely ür-text: a conspiracy thriller with training wheels.

From Los Angeles Times

“Dads push us to take risks. Moms put the training wheels on our bikes. We need moms. But not in the military, especially in combat units,” he wrote in his book “The War on Warriors: Behind the Betrayal of the Men Who Keep Us Free.”

From Salon

In it, he defends his view that women have no place fighting in the military because “Dads push us to take risks. Moms put the training wheels on our bikes. We need moms. But not in the military, especially in combat units.”

From Salon

They may be horror movies with training wheels, but they’re also teaching PG-13 audiences to maintain a healthy skepticism about the future.

From Los Angeles Times