Will you still be riding in 5 years?

Mouse I am always impressed most by people who ride with kids on the back. I have real respect for people who do the tescos run / school run with a trailer on - I hope that'll be me in the future. However, with the added years and weight (me & the kiddie trailer) I doubt I'd be doing that fixed!

I've used a trailerbike and a bike seat attached to my fixed before (not at the same time obviously). It's not too bad when you're moving, but it is much harder to get your pedals in the right position at junctions when you've got two stone of precocious child on the back. I haven't yet attached the trailer, though I'm sure I'll attempt it at some point.