In some Pokemon fanfictions, the idea that Ash can't touch Pokemon might be a creative rule set by the author to add an interesting twist. It could be related to some special power or curse within the fictional world they've created.
It depends on the context and what 'it' is. If it's not prohibited or dangerous, you might be able to touch it, but if it's something protected or forbidden, then no.
The main distinctions lie in the storylines and settings. Touch manga often has a more heartwarming and gentle tone. Rock manga, as the name suggests, is likely to be filled with energetic and passionate moments related to rock music. Also, the character designs and plot developments can be quite distinct in both.
Yes, Pokemon is a manga. It offers fans another way to engage with the Pokemon world, often featuring unique takes on the familiar elements and adding depth to the overall narrative.
In the fanfiction, not being able to touch Pokemon would isolate Ash in a way. He couldn't participate in activities like grooming or training that require physical contact. This could make other trainers view him as an outcast, and he'd have to work extra hard to prove his worth as a trainer without the use of physical touch.
The answer is no. Touching raw manga without permission is not allowed. It might cause harm to the manga and could also be considered an infringement. It's important to respect the medium and its creators.