Just be careful that the reverse policy applies if landing a Cessna single (150 and 172). The POH requires full carb heat on until after landing when it is selected in to Cold before taxiing. Same with go-around procedure in that it includes first full throttle and after that carb heat in to cold. The short time the throttle is full open with carb heat hot will presumably not cause detonation but will clear any ice that may have gradually formed on final.
This certainly is NOT a requirement. The proper use of carburetor heat is entirely dependent on the existing conditions, and not on a blanket practice or procedure. Carburetor heat is a tool to be used where necessary and appropriate. Cessna, Piper, Lycoming, Continental, Bendix, Precision Airmotive, etc...don't stipulate otherwise.
The fact is that the ONLY consideration in when to apply and remove carburetor heat is the carb air temperature. Unfortunately, most light aircraft don't come equipped with this feature, leaving largely judgement in when to apply it, and when not to apply it or when to shut it off.