Sorry I don't understand your answer. From child development and psychology perspective - what's best for them?
Two settings will provide a change of scenery, different children, toys etc.
If you start one now and then one in September there will be time inbetween for your child to get used to one setting before starting another. He will also be a few months older. Having been in a setting will know more what to expect and understand when you take him.
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