ELI5; why are we taught that atoms are the building blocks of matter when atoms are made up of smaller things?

Question

ELI5; why are we taught that atoms are the building blocks of matter when atoms are made up of smaller things?

In: Chemistry

Answer 1

Because these are the Legos we understand best. We have studied long and know most of the rules. We don’t like to rely on uncertainty albeit the principle therein. Also we can build with them.