Sometimes kids are slow to train or are not comfortable going on the potty. My oldest didn’t fully potty train until he was 3. My middle child saw big brother going on the potty and was trained by 19 months. My youngest was two years old.
Bottles? By the time their teeth started coming in, we were moving on to sippy cups.
Mine let us know when she was ready for potty training by pulling her diaper off. I believe she was almost two. The bottle or “baba” was a little harder to break her from. She was very attached to that thing.