He's cautious, more than anything. Pedaling and steering at the same time takes practice, and he doesn't have an instinctual feel for either yet. Sometimes he lets me help, but his dada is the more favored teacher.
I'm not surprised by this, or even sad about it. The Kid and I have a lot of the same flavors of worry that circle 'round our brains on the day-to-day. Sometimes it helps me understand him better than Sweet Husband does, but for this particular activity we only double down on each other's anxiousness--not a good thing when you're trying to learn to ride a moving, balance-y object.
Instead, Little Miss and I trail behind. Sometimes in a stroller, sometimes toddling slowly in her "pearls" and "hat".
All the better to be impressed when he comes pedaling along from behind and shoots right past us, riding solo and steady.