I ride my bike in the city daily 7-8 months of the year, and less often when there's snow on the ground. I have the confidence to ride in most traffic situations, but I do not enjoy mixing with cars, and will take detours to avoid particularly busy roads, and any roads where I'm expected to ride between traffic and parked cars. I am a big fan of separated infrastructure, except for door zone lanes. Bike-specific infrastructure is a better alternative, but if a multi-use trail is wide enough to accommodate the volume of traffic that it gets, I prefer that to riding with cars. Unfortunately, there's an upper limit on how much use a MUT can get before sharing the trail becomes impossible.

Basically, I'm definitely a segregationist when it comes to transportation infrastructure, but if we're only partially segregated, I'd rather mix with peds than with cars. Cars present a threat; peds present a hassle.