I don't blame merchants and exchanges for not yet looking into LN, because there isn't much to gain yet, especially with how the main-net is doing a pretty decent job keeping the fees low.
I expect Schnorr to free up even more block space, and I expect this upgrade to be taking over rapidly with how beneficial it is to any sort of service receiving tons and tons of smaller inputs from users/customers. It would even say that I consider Schnorr to be one of the best on-chain upgrades to the network ever, especially with how its impact will be felt immediately.
Innovation right there. No bullshit gimmick features, just what you really need and benefit from.
schnorr doesnt help with lots of different inputs. schnorr only helps with multisig contracts.. where funds are put into one multiparty address.. where schnorr then hides how many signed it by making it one signature
end result is segwit already moves signatures out the baseblock to not count bytes(fake math) ..
thus segwit would have done some/maybe impact on the tx count
but schnorr because it only messes with signature data..makes no difference in tx count because schnorr just reduces the sig data sat outside the base block, thus it doesnt count anyway
analogy for the non-techs
imagine them trains in india where you see people sitting ontop the roofs because the cabin compartment is too packed
50 years ago:
a child and the proof of the childs origins ('witness'/signature) mother sit in the cabin.
years later it gets crowded. train conductor suggest segregation. get the mothers to sit on the roof so more families (children) can sit in the cabin seats.
not offering more seats in the cabin. just removing some entities to make a few more empty seats by not counting the mothers on the roof
that is what segregated witness does.
next comes smart contracts where a father of the same child gets involved(multisignature) he too sits on the roof. ofcourse no more children fit in the cabin area, but now the roof is getting crowded... so schnorr hides how many people were involved with the conception of the child. by making the mother appear as parthenogenesis (self impregnateable) thus only one parent is on the roof again as no father can be seen
thats schnorr
schnorr doesnt make more seats in the cabin.. segregated witnesses job already takes mothers out of the cabin.
schnorr just cuts down on how many UNCOUNTED entities are involved outside the cabin.. the train conductor never counts the people on the roof anyway. so no impact on passenger(tx count) due to schnorr
....
but here is the thing people dont realise about LN
to actually get a reliable service on LN. most users need to open 5+ channels (onchain tx's) to have chances of reliable routes.
which is like imagining 5 indian children in the cabin with 5 parthenogenesis parents on the roof. just to have a good chance that 1 child gets to its desired destination
then once they done whatever they wanted. and want to come home again. 5children in cabin and 5 parthenogenesis mothers on roof
thats 10tx's worth of data per person.
even going one step further.
visa stats show that the average person only does ~1tx a day. and thats using a currency that can buy anything.
reality shows people wont risk more than 2 weeks worth of income in LN (even devs dont rccommend it) also psychologogy of average person does not plan/predict each and every spending habit beyond a fortnight.
so an average 14 tx's only end up turning into 10 tx's if lucky. for average joe.
this is why LN is not a "solution for everyone". its only a niche SERVICE for gambling/spammers who spend to same known destinations more than once a day