Site navigation suggestions

I'm new, so if this has been covered apologies.

Why no "next" and "previous" buttons for navigating through pages in topics and on boards? I primarily browse on my phone, and every time I want to go to the next page in a topic I zoom in on the page numbers at the botom and hope I touch the correct one. It would be a lot easier to have a button that takes you to the next page/previous page. Or am I missing that somewhere?