I am quite new in cycling, but my first son (4.5yo) is starting school next week and I am very keen to do school run by bike. It is about 1.1 miles in suburban London, mainly on back roads or cycling path. I tried road bike+Bobike Maxi combination, but found it too wobbly. Later I got a mountain bike + Leco middle tube seat, I have yet to fix the seat on the bike, but I am seeing on Internet that many 4yo are expected to ride their own bike. My 4.5yo is not keen on cycling, and taking him on his own bike would take ages while I have limited time to make it to my work after dropping to his breakfast club. I will have 3 path gates (chicanes) on my route so tagalong or trailer would not fit. Maybe trailgator would work if I can hook/unhook quickly if necessary.
Do fellow cyclers think that taking 4.5yo on a bike is a stupid idea? This set up should be for a year or so, let's say it would be an introduction for my son. P.S. I am a strong 5'7'' woman and trust in my ability to manage!!