If your do want to go with a bike trailer.
I recommend that you very carefully check
the hitch. I have pulled a tailer with a
motor cycle for years and have found that
a hitch with 360 degrees of freedom are
the only way to go. If the hitch is a ridged
type the trailer can tip easily. Also if the
rider falls down the trailer does too and
the other way around.
Get something with a low center of gravity.
don fair