You've got to know when to hold 'em
Know when to fold 'em
Know when to walk away
And know when to run ...
Sad to hear, but you are wise in your decision. You know your limitations. That has been my anchor point on these forums for years encouraging folks to fully understand and know the limits of their RV's and their related equipment. The most important piece of equipment, is...after all ... us!
Hope your son enjoys the MH as much as you did. Hope you continue to share your experiences on these forums and try to teach these "young-uns" how it's REALLY done!
Good luck!