Why on earth do you want your child to learn to write and count at 3!
Of course it's great they explore, colour, shapes and all the rest of it, and I have to admit all mine could write their name when they left preschool. But also, I don't care.
I would like to see kids being kids, learning to interact with other, possibly learn through songs - so yes, please, throw another language, but preschools who concentrate on time outside, building things, playing in mud, running around are so much better. Be confident in public toilets, many kids can but refuse to use them, have good table manners and know how to hold your cutlery properly. Gardening, baking, that should be what preschools concentrate on. Through all the games, they do learn a lot, but the most important thing is to have kids excited to go.
They have their all childhood to be forced to read and write - and truth is, mine don't mind reading, they only complain about homework when they reach secondary in my home. I am still waiting to see proof that kids who learn to write earlier achieve more in life. Some have very pushy parents, so will be forced to study a lot, but in the long term, it's not helping anyone.
Children in my school who had famously pushy parents did not achieve any better than the rest of us. The most successful people from my old classes were far from being the most academic.