Having a Force-wielding child would be a nightmare.
Just raising any old plain mundane kid is hard enough.
Now imagine the little darlings can Force-choke you or shoot lightning bolts at your face.
This answer confirms that the Force-sensitive do not need any training to use the Force.
I know it sounds unbelievable but it's mostly the Parents that choose to give their Kids to the Jedi order.
But it could be because of their health.
If the Mother is sick she would bring the Child to the Jedi order volunteerly that was the case for Obi-Wan Kenobi.
Obi-Wan's Mother brought Obi-Wan to the Jedi knowing she was going to die soon.
Of course some ...
I believe that the novelization goes into a bit more detail. From what I remember, it was because Palpatine (Sidious) was using a forgotten technique of the dark side to limit the force abilities of other force users. Yoda knew it was happening (The dark side clouds everything), but even he didn’t know who it (they) was/were. That’s how Sidious was able to ...