Why we can't ride on a bicycle?

I often ride on a bicycle when I drink an alcohol because we can’t drive a car when we’re drinking.
But now, new rules make a decision ban of drinking riding on a bicycle. I strong oppose this new rule!! I think this is only tightening of regulations. Who is making a decision this crazy rule???

It’s just summer season now. There’re lots of fire work festivals and an enjoying barbecue so on. Many people drink an alcohol in this season and they can’t drive a car when they’re drinking. It goes without saying that they choice the transportation system for using a bicycle about these situations include me!! I understand we never drive a car when we drink but I really don’t understand why don’t ride on a bicycle when we drink?

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