A touch screen and a connected keyboard are not competing choices. In a hypothetical tablet reader, a person might select an article by touching the screen and then use a supported keyboard to open help. The important question is whether the page responds to the available input method, not which method was used first.
How the input change should be understood
Imagine the reader taps an article tile, connects a supported keyboard, and then uses Tab to reach the help link. If the same page could be reached with touch, keyboard, or another supported input, the first touch action should not, by itself, prevent later keyboard use. This is a comparison of interface behaviour, not a claim that every tablet, keyboard, or website supports every method.
In a fictional note form, compare tapping the field with tabbing to it. Both reach the same text box. An initial touch should not silently lock this ordinary reading task into touch-only navigation.
What the accessibility guidance says
WCAG 2.2 Success Criterion 2.5.6 describes concurrent input mechanisms at Level AAA. Its guidance supports allowing available input modalities unless a restriction is essential, needed for security, or caused by a user preference. It does not require hardware capabilities absent from the platform; a site cannot dismiss an available method simply because it first detected touch. Read the W3C guidance on concurrent input mechanisms.
Limits when reading a real page
If touch selection is followed by unresponsive keys, several explanations remain possible: the page may not support that keyboard action, focus may be elsewhere, the platform may handle the device differently, or the page may have a behaviour problem. A brief comparison can help: try reaching the same article with the keyboard from the page start, then compare it with touch-first navigation. Do not infer a site fault from one sequence alone, and do not weaken security controls merely to force an input method.
Responsible entertainment note: This article is for screen reading and risk awareness only. It does not provide betting advice, account service, payment handling, outcome prediction or any guaranteed result.