I'd like to use the car less and have been searching for a good way to get my 7 year old girl to school. She is tall for her age and weights in at around 30kg. I am also tall at 6'5".
When she was a toddler, I used to use a Burley Solo which was fantastic, but she outgrew that a few years ago (her head poked out of the top.
I have since been using a Weeride Propilot tagalong. This is 'ok', but I just don't really feel it is as stable as it should be and I have started to get some annoying rattles that I find hard to pin down. This wasn't the cheapest tag-along and I bought it mainly because it is aluminium and therefore lighter and less likely to rust. Although the frame is aluminium, almost every other part is steel and has rusted to pieces! For these reasons, I am using the car more and more and the bike/tag-along is just sitting in my garden looking tired and sad.
I was looking at a Bobike Junior seat which looks good, but only takes around 32kg safely, so my daughter is close to that limit already.
I have been contemplating an Xtracycle extension kit for my hibred bike. These look very good, but they are £450+ which seems expensive.
My commute is around 3-4km each way, though I usually only do the drop off then cycle home from work without her. She hasn't had much practice on a bike herself, so she can't really cycle along side me all that way. Even if she could, it isn't practical to leave her bike at school.
I'd be interested in other options.