Finally found a great mobile option for our 9yr son that easily fits him (70lbs height 4'8”). Got this at ToysRus today. Babytrend Expedition 2in1 Stroller Wagon (can convert to wagon). There
Baby Trend Expedition 2-in-1 Stroller Wagon, 2022, Liberty Midnight
Baby Trend Expedition 2 in 1 Stroller Wagon Plus Ultra Marine - Walmart.com
Baby Trend Expedition® 2-in-1 Stroller Wagon PLUS | Push or Pull
Sasha's Rain And Wind Cover For The Baby Trend Expedition 2-in-1 Stroller Wagon Plus : Target
Baby Trend Expedition 2 in 1 Push or Pull Stroller Wagon Plus w/ Canopy, Blue, 1 Piece - Pick 'n Save