Conversation so far:
how late can you buy beer in ohio
In Ohio, beer can be bought at grocery stores from Sunday to Saturday: 5:30am to 1:00am. Bars close at 2:30am.
do all bars in ohio close at 2:30 am
In Ohio, the last call is 2 a.m. statewide, but establishments may acquire licenses that allow them to serve until 2:30 a.m.

Question: what's the drinking age
Self-contained rewrite: what's the legal drinking age in ohio