You need to understand the differences of a small t-prop and an RJ as well as the OPS spec for both. Some companies might require you to be stabilized on you final approach course on speed and sink rate by 1,000 ft, this would require you to complete your turn by around 3 1/2 miles out from the departure end of the runway and if you are going by DME add in another mile or two for runway length is the LOC antenna is on the departure end of the runway (likely) and you are fast approaching 5-6 miles. I am not making any excuses but there is a reason why often ATC fit t-prop (not just lakes) between jets and not the other way around and it has to do with maneuverability. Also some people are just not comfortable with, please respect that is not because they are a lesser pilot, but because they might not do it often and are exercising caution. A pilot who frequents DCA, LGA or even Aspen in a jet might handle the situation differently. There is more to flying than just whipping an aircraft around!