Let $\sigma:\mathbb R_+\times\mathbb R\to [1,2]$ be measurable. Consider the SDE $dX_t = \sigma(t,X_t)dW_t$, where $X_0>0$ is independent of Brownian motion $(W_t)_{t\ge 0}$. For every $T>0$, can we always show
$$\mathbb P[\inf_{0\le t\le T}X_t\le 0]>0?$$
Here we assume the existence of the solution to the above SDE.