This is so important for US planners and cities to understand — if we hold up the Dutch as an example, they *don’t* mix children on bikes with fast cars (and it’s very few cars at that.) Children and bikes can’t be safely engineered to coexist unless that car is going way under 20mph. That’s not a thru street for traffic; that’s parking lot speed. Ok, but what about adults? Lots of adults are risk-tolerant enough - the ‘fit and the brave’ to bike around moving cars — 1-8% depending on the danger level. But there is a hard ceiling — most people (92%) are risk-averse and unmovable. Ask your average person over the age of 30 if they’d use a low quality bike lane: I’ve had my head bitten off many times at the suggestion. So the bike strategy hangs on the question: does adding bikes lanes that only 1% or 8% of people will use CONVERT people to be pro more bike lanes? The evidence says they anger and scare drivers and pedestrians and make cautious wannabe bikers literally sick to their stomachs with stress. 80-90% of any population across the world will bike when it’s safe. My hunch is Ciclovia is the *great conversion* strategy - close streets across a city every Saturday or Sunday year round - and see if some communities want to expand safe biking zones. Or build ground-up car free communities like @CAForever