You are potentially both correct. But since we can learn to improve articulation at any age, it's likely that you will pronounce the sound more clearly and correctly if you train yourself not to allow your lips to touch.
Paraneoptera
joined 2 years ago
Yeah, it's bogus. This is some speculation that someone put in Wikipedia but there's no published source. It's just a folk etymology that some enthusiast thought was endearing. Not a single reputable source will substantiate this, like most folk etymologies.