Besides data caps on residential broadband, a non-trivial number of clients will be on mobile and have effectively zero ability to reseed content. To enable streaming from mobile devices requires a lot of server infrastructure to support hole poking and reflection.
Even with residential broadband without worries of data caps, there's still issues of firewalls and terrible upload speeds. Hole poking in residential firewalls like on mobile requires third party infrastructure. Most end users are not readily able to forward ports on their home routers. It's also not uncommon to see 10:1 downstream to upstream ratios. There's plenty of connections that couldn't manage to reliably upload a single FHD stream to a single client. It would take a hundred seeders with Comcastic upload speeds of 10Mbps to equal a single cheap VPS on a 1Gbps connection.
You can in Europe, but it is worth the dev time? It doesn't matter when monetary costs are second to principles, but it be wrong to think that most companies are spending their time fancying P2P.
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So, your origin needs to handle the parts of the world with bad internet infrastructure, but can use P2P in Europe and the US, then?
Besides data caps on residential broadband, a non-trivial number of clients will be on mobile and have effectively zero ability to reseed content. To enable streaming from mobile devices requires a lot of server infrastructure to support hole poking and reflection.
Even with residential broadband without worries of data caps, there's still issues of firewalls and terrible upload speeds. Hole poking in residential firewalls like on mobile requires third party infrastructure. Most end users are not readily able to forward ports on their home routers. It's also not uncommon to see 10:1 downstream to upstream ratios. There's plenty of connections that couldn't manage to reliably upload a single FHD stream to a single client. It would take a hundred seeders with Comcastic upload speeds of 10Mbps to equal a single cheap VPS on a 1Gbps connection.
US is out because data caps.
You can in Europe, but it is worth the dev time? It doesn't matter when monetary costs are second to principles, but it be wrong to think that most companies are spending their time fancying P2P.