Sippy cup he or she

I used he or she sippy cup for my kid. I ikut my kid's pace. I did the transition slowly. Using it at 6 months till 10 months. 10 months to 12 months bottle straw. Starting 1 year fully open cup til now (2 years 8 months). As long as cara penggunaan nya betul. Takde masalah.

Ape keburukan dia sy puting beli dkt he or she