There is no definite answer to this question as every child is different and will reach milestones at different ages. However, most experts agree that children should be fully potty trained by the age of 4 or 5.
If your child is not showing any interest in using the toilet by this age, it is important to consult with their pediatrician to rule out any possible medical issues. Once you have ruled out any medical concerns, there are a few things you can do to encourage your child to use the toilet:
1. Use positive reinforcement – praise your child when they use the toilet successfully and offer them rewards for doing so. Avoid punishing them if they have an accident as this can make the process more stressful for both of you.
2. Make it fun – try playing games or singing songs while your child is on the toilet to make the experience more enjoyable for them.
3. Be patient – some children may take longer than others to master this skill so it is important to be patient and keep working with them until they get it.