So do you also feel that it's appropriate to integrate sexual activities with worship? Because to me, service to God is in itself a joyous and
sacred thing and need not be mingled with fleshly pleasures such as drinking alcohol. In fact is is mentioned in the bible “Do not drink wine or intoxicating liquor, you and your sons with you, when YOU come into the tent of meeting". A bit of a rant... Apologies
In the Old Testament the Lord also instituted drink offerings as part of the worship at the Tabernacle and then the Temple. I 100% agree with you on sexual activities being not proper during the corporate worship service. But, I believe the discussion is, or should be, about is something allowed rather if it must or should be involved. As a pastor, my church uses wine for communion. I do not have a problem with churches that decide to use grape juice, they need to follow their conscience. I would not be in agreement with drinking pints of beer during the worship service though. Worship gets thrown around as a word a lot. It is used two different ways. 1, our daily 24 hour response to the Lord for creating and saving us is our worship, i.e. we obey Him out of gratitude. 2, corporate worship is the gathering of God's people to worship him as He proscribes in His Word, i.e. the reading and explanation of the Word, prayer, praise...
How I drink, not being a drunkard, is part of my 24/7 worship of Him. I obey Him. I have no problem with sitting down with someone and talking about the things of faith and God over a pint or 2. I don't know if having scheduled church activities at a bar is a good thing. I don't see the point. I am considering doing a learn to homebrew day with our men's ministry as they would like that.
On the whole weaker brother thing. This gets abused a lot. Paul in Romans was saying two things. 1, if a weaker brother has a stumbling block the mature brother should not engage in his freedom in Christ
in front of his brother. It does not mean that the weaker brother can control the mature brother's behavior all of the time. 2, the weaker brother is to grow up spiritually.
There are other factors that get lumped into stumbling blocks that are in a different category. A recovered alcoholic does not have a stumbling block with alcohol, he has a prior problem and any brother or sister Christian should love him enough to not drink if front of him out of love. A stumbling block to Paul was someone who still thought something was wrong even though it was not. An example, my other hobby is shooting. If a member of my church was a parent that lost a child in a school shooting I would not were one of my tshirts with guns on them around that person out of love for that person. I do not want to cause them any more pain that they have already experienced.
Some Christians try to be a "professional weaker brother" to control others behaviors which is not the point of what Paul speaking on.
On all of this, when in doubt, pray about it. Why do you want to do it? If it is mixing ministry and beer, is it because you like it or is it to reach a specific group of people and bring glory to God?