Мы изучаем их с детства, в школах и

Мы изучаем их с детства, в школах и университетах.

Результаты (английский) 1:

We are studying them since childhood, in schools and universities.

Результаты (английский) 2:

We are studying them from childhood, in schools and universities.

Результаты (английский) 3:

We are studying them in childhood, in schools and universities.