The only place we are going to put baby gates are at the bottom and top of our stairs. Are pressure mounted gates sturdy enough? I don't want to drill holes in our banisters if I don't have to but also don't want to compromise on safety.

Also I'm wondering how long people left their gates up. LO is 7.5 months and I don't plan to have #2 until she is at least 2.5 years old...would I leave the gate up until we are done using them for #2?