Not sure what the purpose of going outside would be, though, other than for maintenance, given you'd be 50km up in the clouds.

A sweeping vista miles into the sky, above an alien world, through a break in the deadly clouds? Hell yeah I'm stepping out on my Venusuvian balcony.

Almost makes me wish I was born later.

At 50km you might get breaks so you can see clouds, not sure. That's it. But no chance of seeing the ground. That might appeal for a few minutes, but I think I'd be content with seeing it from an observation dome

Maintenance is indeed the big one. That's what most ISS EVAs are for!

Plus makes emergency procedures for leaks MUCH cheaper - light emergency ponchos and masks, and just walk over to the next sealed building.

Leaks wouldn't be a big issue because the pressure would be similar. You'd need to fix them, but you won't have the air suddenly rushing out.

I'm assuming you mean sealed buildings inside the blimps here, because you'd have nowhere to walk to on the outside on account of being 50km above ground. In which case you probably wouldn't need anything in the case of a leak.

That's what I meant. No need for fast closing bulkheads, just get everyone out to another sealed building inside the same aerostat at whatever speed it takes them to walk to an exit and get in their protective non-pressurized gear. Outrunning gas diffusion is easy.

For fun! I could imagine it would be pretty great to zoom around in the clouds in some kind of powered flight suit if you could.

50km up with certain death of you can't get back to the blimps because dropping down to the surface would be lethal? In fast moving wind systems? Yeah, no thanks.

I know people that feel that way about going outside on earth.

you will only see a beige fog. Nothing else