Yes, this makes sense.

Most people will use higher layers, like they do today.

With the current banking system very few have access to central bank money.  Most use bank credit, which is claim on the loan book of the banking institute, normally mortgages which wont be paid for many years.  So even today people's tolerance for risk is enormous, beating the status quo is a very low bar.

Bitcoin denominated finance can happen at all sorts of different layers, at scale.  Each with a different trust profile.

It's important that the base layer is accessible else people get driven onto single points of failure which incrase systemic risk.  The fact that the base layer is accessible is what keeps the higher layers honest.  There is a balance to be had.

The other aspect is that bitcoin is unique as an asset in that it is a level playing field with a track record, in that respect it has 99% dominance, with 96% of coins mined (and likely 4% burnt by the founder), it will be very hard to find another such non-proprietary level playng field.  Bitcoin needed a huge node network to achieve this, and almost failed 2-3 times.  It is now in a strong position precisely because it chose decentralization early.  Obviously the market like that choice too.  There is competition from proprietary copies who want market share, and also internal politics and social attacks, which are probably the biggest threat.

Bitcoin now has options.  In a sense much of the hard work is done.  There is going to have to be a balance between layered solutions, trust in those layers, and the base layer used to create trust channels.

The block size could grow to match hardware, and also keep the minimum level of decentralization needed for bitcon to keep its dominance, and not be too heavily disrupted.

Important to remember that bitcoin can still be disrupted by a high fee attack, and that a bigger mempool tiers mitigates that attack.  A state could launch such an attack for example.

I generally see bitcoin competing with gold in the medium term, and growing layer 2+ technology.  Having a good open discussion recognizing the threat surface, the history, current state of affairs, and the trade-offs seem a sensible way forward.  

Of course there will be political agitation, and social attacks too, and bitcoin will have to survive those.  It's up to us to help bitcoin survive those, and not unwittingly fuel them!