The process of speech development in a child depends on many factors, including physical activity, developmental activities, parental speech, motor games, etc.
But there are also common patterns for everyone: for example, the foundations for the formation of sounds are laid at one and a half to two years.
If you are specifically interested in the letter "r", then its correct pronunciation is evident in children aged four to six years.
If a child still cannot pronounce the "r" sound by the time he or she reaches five years of age, regular lessons should be considered.
Observe the progress over 1.5-2 months: if there is still no change, you should consult a specialist.
Sound development with a speech therapist takes about six months.
However, training with a specialist is not enough: be prepared for the fact that in order to achieve the desired result, you will need to exercise at home.
Earlier, BelNovosti explained why the eye color of young children changes with age.