This Isn't Just a Cool Bike, It's a Family-Friendly Lifestyle

Bike laws vary by state, but in CA anyone under the age of 18 is required to wear a helmet when operating or being carried on a bike. We always have our kids wear helmets when they're in the bucket and we've found that they stay on properly and seem to be more comfortable because there's nothing behind them pushing the helmet forward or even forcing it down toward their backs (which was an issue in the bike trailer).

While I've seen younger kids and even car seats strapped into Madsens, you should consult your city's cycling laws before deciding what you're comfortable with. There's not a ton out there on biking with children under the age of 1 but most information I've found recommends waiting until your child can sit upright and their neck can hold the weight of a helmet before transporting them by bike.