Yes, in England, for instance, after HS, if they want to go to uni, they attend some sort of 2-year “college” (sixth-form, grammar school, etc.) where they learn enough in up to 5 subject to do well on the A-levels (like our AP’s but generally harder) that top English unis require. So it’s kind of like going to CC for a while before uni.
However, a big drawback with taking kids straight in to a terminal (6Y) undergrad med school program is that few people actually really know what they want to do with their lives or really have a talent for at 18 (or even 19) even if they think they do.