I can’t think of a single benefit of doing this. What made you come to this conclusion?

You’re teaching him everyday (kids are naturally inquisitive and mimic), so I assume you mean structured learning. I’d say there’s not necessarily a downside to holding back on structured learning though structure and discipline elsewhere are good.

You'll teach your child things, whether you realize it or not.

You'll teach him to hold your hand when crossing roads, not running out in front of cars. You'll teach him the way you walk to the local shops and back, you'll teach him that kicking you in the crotch is bad, and that he should say "sorry" and not do it again.

You'll probably hang out with neighbours and teach him how to share toys and not fight over them.

All that kind of stuff matters, and is important.

We started taking our child to kindergarden in Finland when he was 1, he'll be going there until he starts proper-school at 7. Mostly they play, draw, listen to stories, sing etc. It's not academic in any sense, but he still learns.

Probably the most important thing he learns is to get dressed and be social with other children of a similar age. He has friends he likes, people he doesn't like, and often these change over a period of weeks/months.

I fully expect he'll be able to read in one/two languages by the time he starts school. We read to him every night, and usually I stop and say the "fox in ?" and point to the word - half the time he'll say the right word, half the time he'll be like "I don't know that word". At first I though he'd memorized the dialog, but when I switch to a new book he's never seen before he still recognizes simple words like "cat", "dog", "hat", "car", etc.

I don't think I'm teaching him to read, we rarely sit down and do anything for more than a few minutes, but he's picked up a lot of things. Like one day he said "That tram is 10", and now he knows about tram-routes within the city "This tram goes to the library", "This tram goes to the swimming pool".

One thing I do when the weather is nice is say "We need to buy cake, where is the cake shop?" He says "go left", "go straight", "go right" and gives directions which we follow. Sometimes he's either confused, or perverse, and sends us in the wrong direction. But that's OK, nice days are worth wasting. But with all that normal stuff we're teaching him stuff, whether it is academic or not.