If my ISP gives me 10 Gbps, I want my PC to have (at least) a 10Gbps single path to the router.
So, If I already have a 10 Gbps path to the router, I don't want to add a 300 Mbps failing air path added to my way to the router.
In the context of the parent (at home networks), I think most people has two paths... WiFi or RJ45-UTP. And with that multipath setup (WiFi + RJ45, I don't get why other comments are talking about cellular networks "at home") is not usual to walk away; right, you could walk, as far as long is the rj45 cable, but...
To keep HA on WiFi when walking around, there are other technologies more battle tested than MPTCP.
So, If I already have a 10 Gbps path to the router, I don't want to add a 300 Mbps failing air path added to my way to the router.
In the context of the parent (at home networks), I think most people has two paths... WiFi or RJ45-UTP. And with that multipath setup (WiFi + RJ45, I don't get why other comments are talking about cellular networks "at home") is not usual to walk away; right, you could walk, as far as long is the rj45 cable, but...
To keep HA on WiFi when walking around, there are other technologies more battle tested than MPTCP.