I suspect the real stumbling block with film is the darkroom itself. Youngsters aren't often in a position where they can devote space to a darkroom or convert parts of buildings that don't belong to them, or feel settled enough. Communal/college darkrooms may not be available and can be dispiriting unless there is a tyrant in charge.
I would agree. I used to live for many years in two popular University towns in the UK. Most bachelor-level students would be guaranteed a room in college accommodation (= a shoebox), whereas for most MSc/PhD students, as well as postdoctoral researchers and junior staff employed by the companies in the adjacent science parks, pretty much the only option to live affordably involves flat sharing.
It is common in the UK and elsewhere in urban western Europe for 20-35 year olds to live with other students, or young professionals, and share a communal living room as well as a bathroom, and perhaps if lucky a tiny garden. The idea of taking over what little communal space there is, during day- or nighttime, to engage in lengthy solo sessions of any kind (including darkroom work) would be considered extremely rude and generate conflict, in my experience.
Flat-sharing of the above sort mostly ends when/if people decide to move in with a partner. Then comes another type of flat-sharing, more rental might be involved depending on property cost/availability, babies and toddler join in, and we're back to constraints on time and available space, only of a different kind. Life gets in the way.
Most large cities in continental Europe are similar in this respect. Space is at a premium, rental prices are through the roof, people often move around to pursue their planned study or work careers. In my age group some are married and some have kids, others still live out of a couple of suitcases and move between say Basel, Amsterdam, Stockholm, San Francisco, Oxford, Boston. No time, no space, and perhaps too little money for a darkroom. But possibly space for a Yashica T4 or an OM1N and a couple of rolls of Portra in that suitcase.
So nothing whatsoever to do with digital 'laziness'. It's just that not every film photographer is an art student with a lot of free time to tinker with large gadgets or with easy access to community darkrooms, or someone who has been settled since 1971 and lives in a huge house with a massive basement in the prairies of south-western Minnesota.