2 is very young. The national average for boys is 3.5 years and that is not for perfect potty training- not accidents and that allows that a lot of boys learn later. When mine was 3 1/4, he was not interested in training and nervous about it. We gave into some pressure and tried to push it. If it gives him anxiety he might withhold. Statistically 40% of boys withhold. When they do have a bm, much is still left inside the bowels. Our son was in excruciating pain. We had him x-rayed and he was backed up into his chest cavity area even though he had pooped each day. Our pediatrician and our nurse practitioner's advice- "Back off Now." When they get stressed, it will typically take them 3-6 months to start to forget about the anxiety over the issue. So, they recommended re-visiting it 6 months later. You will still be well ahead of the average if you re-visit closer to 3. And, you'll avoid weeks/months of anxiety and pain. It is just not worth the pain and anxiety. And if he does withhold, it will takes days of enemas and stronger products to clear his system and to keep him from continuing to withhold out of anxiety. We had to use Miralax for 6 months.