@rysiek 2 Problems and the #answer below:

1/ The weakness is in people / their learning curve / energy + tolerance needed to figure it out. Iit's always going be the problem / challenge initially.

2/ Sometimes just better to install a new operating system / app + account FOR grandma etc *instead of understanding the install *

Allowing " #dualboot " (both commercial and #FOSS version to play around / migrate instead of just one or the other which probably good for learning curve.