So I posted this elsewhere originally but haven't gotten any advice.
So I'm doing a 20km charity walk soon with a friend.
Originally I was just going to take my 3 year old in her stroller, but then my 11 year old said she wanted to go as well.
My 11 year old is petite (26.5kg, 132cm tall, still in a booster seat), and can't walk the distance. When I told her this, she suggested that she could sit in her sister's stroller for 5 minutes here and there to rest.
I had to laugh at the suggestion, but then told her that it would be hard to keep her sister walking for long enough for her to rest up (we would be walking briskly, DD3 would struggle to keep up).
At this point, my friend said that if DD11 was serious then we could take her double stroller. It's a Valco Baby Tri-Mode Twin.
DD11 is about 4.5kg over the seat limit, but my friend isn't really worried. Both girls sat in it for about 15 minutes at my friend's house, and no problems.
My concerns are as follows:
1. Is 4.5kg over the 22kg limit per seat a big deal? I pushed them around and it felt fine.
2. Can anybody foresee any problems?
DD11 has been told she can walk some of the way, but once she gets tired and wants to use the stroller she can't get in and out every five minutes - once she's in she stays in.
Any problems with this approach?