DS2 is nearly 3. He never liked swing. Because of the pandemic (lockdown and etc.), obviously he's only exposed to swing probably just before he turned 2. I tried to encourage him go on the swing each time when we go to the playground. He usually would accept my offer. But he rarely looked up when in swing and always called for a stop within one minute. When I tried to encourage him give it a bit more time, he really didn't seem to be able to relax and enjoy in the upwards/downwards movement.
He doesn't like trampolines either or things spins fast. As if he fears of losing control of his own body/movement. Not rocking horse too.
He only started to like seesaw if nobody else is on the other side so that he has the full control of the movement.
He's otherwise very bold and brave. He doesn't mind wall climbing or walking on very tall tree logs
I read something about "Gravitational insecurity". Does anyone have any experience of it?