Originally Posted by
sembupp
Do you think more people would be interested in unicycles with training wheels?
We refer to these as bikes ;-)
They could potentially come in two or three wheel configurations, and they would make unicycles easier and safer to ride.
In all seriousness, there's no point. An array of wheels spaced out into two dimensions requires very flat and even ground and so poorly matches real situations where a human-power cycle would be useful. And a unicycle is already a fairly ineffective way of going somewhere, since in normal models you have an absurdly low gear ratio and no freewheel. Also, when constrained by additional wheels, you can't turn.
An ordinary bicycle, or a well designed tricycle make more sense - wheels not included in the original design just don't work well, since everything changes based on their number and location, and beyond three you need an adaptive suspension.
The only reason to ride a unicycle is if you actually want to be riding a unicycle... which is not what you are doing if your cycle has more than one wheel (that contacts the ground; vertical stacks exempted since the extra wheels are just power transmission)