alcohol in food??

i did rissotto today and without even thinking put a sml glass white wine in, though the alcohol cooks off i was still worried about lo having it (16m old) but i didnt have any baby jars in so gave him some and he loved it
if the alcohol cooks off,. is it ok ?
i used to put a bottle ale in stews red wine in gravy etc but havnt bothered since lo started eating the same, just today it didnt occur to me (im blaming preggers hormones,lol)
be nice to know anyone elses thoughts
xxx