My 1 yr old just doesn't just doesn't drink from bottle with straw, she still uses tumbler..how can i train her to use straw bottles?

For both of my kids, I just show them how I drink from straw bottle and repeat it several times. Eventually, they will mimic on what we do. Both of my kids managed to drink from straw from 6-7months onwards. I agreed with mummy Nooraini that Pigeon MagMag straw cup is very good. It is very easy to suck as compared to other brand e.g. fisherprice.