I also have difficulty triggering the tow or winch. But I think it may be because I have my joystick sensitivities set where they don’t reach max values. But you can at least go into slew mode and raise your altitude and start from there instead. Not the best solution but you can at least get in the air and start gliding.
It’s worth it because the glider flight model is pretty good and can be a very fun and relaxing experience when you get the hang of finding lift.