How often do you have to go around?

Wade Hasbrouck writes:

Being a 172 "driver", I know that anything that has more than one engine, or
a jet engine is going to be faster than me, also know most low wing aircraft
are going be faster than me (exceptions could be some Diamonds, some
experimentals, some Pipers like the Tomahawk, but these are typically
smaller than a 172). Most high wing aircraft are going to be right around
my speed range (182s are faster, 150s a little slower, taildraggers are
probably going to be slower because of their landing characteristics, but I
don't know much about taildraggers)

Are you ever instructed to follow heavy aircraft on final? If so, how
do you avoid things like wake turbulence?

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