We carry a spare at all times.
And this is why.
This happened on the interstate. Somebody waved us down and lo and behold, our trailer had a smoking tire. We pulled off the side of the road where everybody drives too fast and started on the repairs.
This little incident happened en route from Florida to Louisiana.
Gratefully, nobody was hurt, Steve put on the spare, and we made it on time to our next destination.
All this to say, always carry a good spare and teach your kids how to change a flat!