Well with a family of 5 i'd take all the speed that was offered to me, currently at 6mbps so doesn't run to good when 3 people are running netflix. and with all this 4k tech coming along we'll need it
for 5 people 100mbps will be plenty, even with 4K!
I would actually say that 50mbps would be plenty enough but I'll be generous by saying 20mb.
I don't understand why everyone seems to think they need a substantial download speed in their home connections... even with 4K coming, the likely hood of 5 people streaming separate 4K streams at the same time is unlikely and the fact is that it will be streamed using a compression method so will use less bandwidth than people seem to be anticipating anyway.
I think each person in a house hold should have 10mbps bandwidth available to them, so a household of three would have 30mbps connection and when more bandwidth (20mbps) is required for one person it can be shared from each persons allowance temporarily as in most cases this will only be a short burst of speed to build a buffer.
Anyway, many are also forgetting that most ISP's have customers suffering peak time bandwidth shortages or in most cases a single threads bandwidth is cut from say 50mbps to 10Mbps meaning 10mbps will only be available for one stream instead of 50mbps, and my findings are this is fine, but the more bandwidth people are allowed/try to pull the worst everyone connections will get nationwide.
I remember reading a couple of months back about our Internet usage being managed more in future due to the power usage but I think the same thing will start happening again with bandwidth.
WBC @ 4500m > TP-Link TD-W8968v3 *Ceasing Soon
FTTC @ 450m > HG612 > Asus RT-AC87U *Migrating Soon BQM
FTTN Coming Soon