At what age did you start doing drop off classess for your LOs? Mine is 3 and I feel that she is still not ready to be left alone.

Childcare/playgroup classes start at 18mo, so at 3yo, that's N1, either half day or full day without parents. Enrichment classes are usually parent-accompanied too. But i'd say go with your child's character and comfort level. not all kids are ready at the same time.