We human beings are limited in what we can do and how far we can see.
When we are in a place, all we can is that current place and not beyond it. We do not know what is happening elsewhere except in our current area or location.
God is omnipresent meaning he is present everywhere at all times. He can be with you now, and also be with someone else at the same time.
Why trust in yourself with limited limits and not trust your future in a God who has no limits?