Here is the reason for the Sabbath, it was for a sign of a covenant between God and the children of Israel.
Exodus 31:16-17
16 Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.
17 It is a sign between me and the children of Israel for ever: for in six days the LORD made heaven and earth, and on the seventh day he rested, and was refreshed.
Here's what happened if you so much as picked up firewood:
Numbers 15:32-35
32 And while the children of Israel were in the wilderness, they found a man that gathered sticks upon the sabbath day.
33 And they that found him gathering sticks brought him unto Moses and Aaron, and unto all the congregation.
34 And they put him in ward, because it was not declared what should be done to him.
35 And the LORD said unto Moses, The man shall be surely put to death: all the congregation shall stone him with stones without the camp.
This is what all of these people are trying to explain to you.
You yourself do not keep the Sabbath unless you rest and do absolutely nothing, not even clean up after the dog in the back yard.
And no making meals:
Exodus 16:23
23 And he said unto them, This is that which the LORD hath said, To morrow is the rest of the holy sabbath unto the LORD: bake that which ye will bake to day, and seethe that ye will seethe; and that which remaineth over lay up for you to be kept until the morning.
(And Sabbath wasn't on Sunday, it was the Seventh Day)
You go to church on Sunday.
This is very nice for you.
But Jesus did not tell us to go to church on Sunday.
So when you ask if others go to church like Jesus commanded, you are asking a question that cannot be answered.
He didn't command it. As hard as that may be for you to believe, he didnt' say it.
Hope that helps,
sunlover