Beginner roller skating
Inlines Are More Stable Than Quads. Here's Why
A hard inline boot locks your ankle, so the skate becomes an extension of your leg - standing still and rolling alike. Quads win on tight turns and rink dancing, but that is manoeuvrability, not stability.
The four wide-set wheels of a quad look steadier, and that appearance is where the usual advice comes from. What actually holds you up is your ankle, and a rigid inline boot holds it for you. The skate stops being a thing under your foot and becomes the end of your leg.
A soft quad boot leaves the ankle free to roll sideways, which is exactly the movement that puts a beginner on the floor. That is true standing still as much as rolling, so the wide wheelbase never gets to help.
Quads win on tight turns and rink dancing, and that is real. It is manoeuvrability, not stability, and the two get confused constantly. The wobble beginners feel on inlines comes from nerves, not from the skate, and it goes away with sessions rather than with equipment.
Keep going: this is one section of the full Roller Skating for Beginners guide — sizing, gear, stopping, and where to skate, in one page.