Hard no buddy. Junior dev means junior code and junior judgement. Countless times we had prod issues because some dev thought the change was harmless and they didn't need review.
OP here.
In this one the closest is probably:
"I love the process at Pylon: engineers merge their own code and only request reviews if they need input, think they have a risky change, or are still onboarding. "
But I fully agree that for juniors it makes sense to have it mandatory.