Nowadays not everyone have the interest for residency. It’s a fast paced AI driven world.. everything is moving fast. Property prices will have skyrocketed out of control beyond your marginal gain in income by the time you are done with residency+ full accreditation as a specialist.

Someone like an aesthetic doc might already be semi retired due to his early stock/property investments, made possible because he chose to leave right after full reg instead of slogging another 8-10 years to be a full fledged specialist.

Also not all specialists are created equal. An ortho/ENT will exceed the earning potential of an average aesthetic doc but non surgical specs like renal/endo will struggle to even catch up.