Using paths shouldn't be limited to just a few people. The principle of access for all is that everybody should have an opportunity to use paths, regardless of their physical or social background. Planning path projects with an access for all approach will help to ensure that outdoor access is available in an inclusive and fair way.
The Equality Act (2010) means that discrimination must be avoided. But that doesn't just mean thinking about people in a wheelchair. Your community may have people in it who are recovering from an illness, or who are pregnant, elderly or unable to use paths easily for other reasons. These people will also want to use paths, but may not be able to undertake intensive physical activity. So you need to think about adopting a policy of providing the 'least restrictive option' so that your path network is accessible to as many people as possible.
The section of this guidance on designing paths includes some specific suggestions on how to make paths as unrestrictive as possible. You can also find information on the Fieldfare Trust website, including good practice guides and a series of standards for providing countryside access for all.
What's important is that you ensure your path project is as inclusive as possible, through a combination of careful planning, following best practice and asking the opinion of a range of potential users. That way everyone benefits.