The fact they want to touch everything they see is a sign of kids’ readiness to interact with their environment. They are inquisitive about how stuff works.
Early age is the best time to channelise this keenness. Simple, day-to-day activities like counting money, using a piggy bank to save money, picking vegetables, grocery shopping, fixing a broken toy or reading aloud from newspapers contain latent life lessons.
If you talk your kids through these activities, their understanding of language, mathematics and mechanics amongst other subjects will be supplemented with a strong foundation.