Sometimes I think I ought to add an extra tag on some of the footpaths that I try mapping while pushing a pushchair.

This weekend for example, we (my 11 month old son and I) were making good progress adding footpaths in Mistley (including Green Lane, Church Lane, Shrublands Road),
osm.org/?lat=51.94322&lon=1.07451&zoom=15&layers=B000FTF
but followed one side path and got to a point where the driveway went through a gateway but the public footpath continued between a fence and a hedge. Looking down the path I could probably have got the pushchair as far as the first tree at which point I would have had to reverse out again (or take sleeping son out of chair, collapse pram, manipulate everything past tree, restore chair, restore no-longer-sleeping son to seat).

On Sunday I'd hoped to walk what looks like an old lane on most maps from Parkeston to Ramsey. We were going quite well until what looked like the old lane disappeared through a gate into the oil refinery's grounds and the path went off to the left, very narrow and overgrown. Again my son was asleep, and with no shade I couldn't just peak around the corner, although adding my GPS track to OSM when I got back it looks like we were a short distance from the dismantled railway line, so might have got through if we'd tried. Instead we went to Frinton and did some paths around the edge and through a housing estate - the worse bit there was moving the brambles and nettles out of his reach on one short stretch.
osm.org/?lat=51.84529&lon=1.24245&zoom=17&layers=0B00FTF