For Hiking you need a Victorinox Compact.
I can't see any reason to take a multi tool in the forest. Throw a simple stone in the rucksack and you have more or less the same results!
He simply said he wants a multi tool, not a hiking and bushcraft tool.
A multi tool is never going to replace a toolkit, but the fact is they’re useful to a lot of people, hence the huge market and range. If they were truly useless, there wouldn’t be several manufacturers producing a selection of models to cater for intended usage. Or forums of devotees.
https://forum.multitool.org/
I EDC a Leatherman crunch and a Micra.
The crunch has locking blades si I believe that it is not legal on your side of the pond. Sadly
Locking blades are perfectly legal in the UK, but require good reason to carry. Work, any situation where a locking knife might be considered the best option, are good enough reason.