Vans do no secure loads other. You need chains for that.
Many things don’t care about weather.
Vans are not hard to break into, though I will grant this.
Vans don’t let the gases out if my welding cylinder leaks.
Vans have height limits lower than the bridges.
That is debatable. Trucks work well, and for this a truck is much smaller since you don’t need to fit it inside.
Finding a small truck is hard though, they haven’t had them in the US in 20 plus years.
Trucks don’t secure loads. Trucks don’t protect from weather. Trucks don’t prevent theft.
Vans do no secure loads other. You need chains for that. Many things don’t care about weather. Vans are not hard to break into, though I will grant this. Vans don’t let the gases out if my welding cylinder leaks. Vans have height limits lower than the bridges.
Again pros and cons, both have a place