Oh well, 30 years ago, when DH was in the Army in Italy, I had no car so we both had bicycles. The car was really for emergencies and travel or commissary visits. I rode with the Snugli baby carrier on my back with my 3 month old. Neither of us wore helmets. Heck, nobody did at that time. Sure wouldn't do that now. Later, as soon as he could sit on his own, about 4-5 months, I got one of those bicycle seats of molded plastic with a seat belt and that was what we used for the next 2+ years. I only fell off once and caught him before the bike hit the ground. It was flat cycling, going to market, errands, and visiting. He and I loved it and went everywhere that way.

I shudder to think about it now, but we turned alot of heads as Americans were well known for driving everywhere and babies rarely went out at a young age! They would NEVER be seen on a bike. I don't know how it is now.

...one month old? I am not sure about that. A few more months might be good for a trailer but the helmet part might be tough for such a youngster.