Part-leasing? I'd say it depends on what the lease provides because every owner has different ideas of what a leasee can and cannot do.
Where I am, Part-leases normally don't include taking the responsibility of feeding (boarding staff do) or farrier/vet (owner), although it does depend. Typically, part leases are great for the inexperienced because you only carry parts of the responsibility and often have someone to ask questions too and supervise. You basically pay for 2-3 days of riding and would be asked to do your part in grooming and any other responsibilities on your time there. At least, you should be able to ride independently. It would be valuable to ask if you can sit in on vet/farrier appts to learn.
Where I am, Part-leases normally don't include taking the responsibility of feeding (boarding staff do) or farrier/vet (owner), although it does depend. Typically, part leases are great for the inexperienced because you only carry parts of the responsibility and often have someone to ask questions too and supervise. You basically pay for 2-3 days of riding and would be asked to do your part in grooming and any other responsibilities on your time there. At least, you should be able to ride independently. It would be valuable to ask if you can sit in on vet/farrier appts to learn.