Is it natural sentence? Whatever maybe situation but you have to stay with me.

What's the correct pronunciation for "tasty"? 😋

Help with this sentence A reel is a cylinder that can be wound with flexible material like film or fishing line. Why “material” not “materials”? I thought it was countable. Why not saying with flexible materials like film or fishing line as we would say in “I enjoy books like Harry Potter or Percy Jackson”?

They are going to climb up walls and says “Walls there can be sketchy and wobbly. “ Beats me. What does sketchy mean here? Sketchy walls = Not reliable walls? Is it a common usage?

Present-day, many people think depend is not good. However, anyone is depending on something. If the thinking is too much emphasis(depending is so not good)some people lose support. One Japanese doctor have a hindrance and he said “Anyone needs to support 4 ways. If humans have many choices, they don't need to rely on just one thing. It is healthy depending and leads to independence. Having many dependents protect people from unhealthy dependents and the self-responsibility theory.”