Thanks so much @Sarah
We have a buggy board with a wee seat on it which is good. Although it is occasionally handy to be able to strap bigger one into the seat and stop him from running off! Depends on the child I think
4yr old? Def just a buggy. My 4yr old would be walking or running around w his playdate buddies he only gets tired after ~3hrs of walking and by then wants his buggy board.
Lascal buggy board. We love ours. The double buggy would have awful weight distribution between a newborn and a 4 year old xx