Some thoughts on Uber Eats...
I used to be an analyst at a VC firm that invested in a food delivery startup (which went broke). Food delivery is not a very attractive business in terms of its profitability, but it is an extremely attractive business if you want to show fast top line revenue growth.
Why so? Food delivery is great because the full order value can be taken as the top line revenue. If someone orders a £80 meal for four, that's another £80 to add to your top line even though your net revenues were ~£8, if that.
The institutional investors Uber will need to attract at IPO will be expecting Uber to have a typical tech company profile - extremely fast growing revenue and healthy losses. Strangely, from the IPO documents I've seen, accounting is very opaque for public companies vs private companies - meaning Uber Eats revenue is unlikely to be separated.
I think there is a possibility Uber is being forced to gear up to an IPO, top line revenue growth from the taxi business is not enough to justify the valuation, so the board has decided to move Uber into food to drive big numbers - but not profitability.