When did/do you start open cup training?

My oldest, around 3. We just kept drinks in the kitchen, just fill about 1 inch. My youngest never used sippy cups. They were fine. Drinks were only in the kitchen.

I won't start until I know she is more in control. Mine is 20 months and when she sees a cup (like the one we use in her bath) she just dumps it over. We use regular water bottles for her right now (they seem to be the least messy for her).

Lol my oldest is almost 6 and still avoid open cups! Joking aside both my kids were 2 when they were able to handle an open cup (but only in the kitchen!)

I waited until my son was about 2, maybe 2-1/2 before I started with an open cup. We went straight from sippys to open cups. I didn't want to waste money buying straw cups.

My son was drinking out of a regular cup by 20 months.

My son started when he was 20 months, and within 2 days had it down pat!

Heck, if I could give my SO a straw cup I would....

My mom started dd at their house around sixteen months- for some reason Anah refused her straw cup only there, so they resorted to open cups. Anah is eighteen months now and does fairly well with small amounts in open cups at home and there, still uses straw cup atdaycare and sometimes at home, and always when we are out and about.