To that end, the Feels will come to those witnessing or living through a particularly moving moment when their heart is fullest and add additional emotion until the heart can no longer contain the pressure.
Most parents start the training when their children are between two years and three years old. But there's no official age, and you needn't potty train your toddler at all if you don't want to.
The answer depends on you, your goals, and the characteristics of your child. Here I cover. What the scientific evidence says about the timing of potty training. Infant potty training (0-12 months) Older infant/ young toddler training (12-18 months) Older toddlers (18-24 months) Potty training after 24 months.