Is there student visa for pre-school kids,and guardian visa?

[boydanmark]

I am mostly living in Thailand with my 1 year old daughter. She has both Thai and EU passport. I am seriously thinking to move to Singapore when she gets a bit older for school. I don't want her to grow up in Thailand. I am now 40 and I am early retiree with enough funds for rest of my life and beyond. So no problem to pay her tuition in good International School.

The question i have is when she becomes 3 year old or so, and decide to go to pre-school in Singapore, can she obtain student visa at this early age? and also can I obtain guardian visa to stay and take care of her? or we have to leave and enter Singapore every 90 days?