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/ 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.