Sucks as its properly dangerous due to simple statistics (you need just 1 out of 10000 drivers to not pay enough attention, be high, super tired, getting seizure or heart attack, etc.). Riding on roads without dedicated full cycle lane sucks, period.
Another point - directly breathing all fumes from thousands of cars every day, lorries, buses and other diesel marvels. More than compensating a healthy activity with equivalent to smoking a pack of cigarettes.
Fanatics always propagate their sports/activity as next coming of jesus, but as with everything there are pros and cons. Biking on standard roads has massive cons.
Another point - directly breathing all fumes from thousands of cars every day, lorries, buses and other diesel marvels. More than compensating a healthy activity with equivalent to smoking a pack of cigarettes.
Fanatics always propagate their sports/activity as next coming of jesus, but as with everything there are pros and cons. Biking on standard roads has massive cons.