Hebrews 10:25 urges "Not forsaking the assembling of ourselves together, as the manner of some is, but exhorting one another; and so much the more, as ye see the day approaching." To ignore this teaching is to demonstrate disobedience to God's Word and design for the Lord's church. Those who love Christ obey His words.
To be "Christian" is to be "of or belonging" to Christ. Many who gladly confess a desire to be "of Christ" live their lives attempting to emulate His life and be obedient to His teachings. They consider themselves Christian.
The teachings of Christ have something to say about being in the church, being in the assembly, being faithful to the church. Many do not know that to be Christian one must put Christ on (Galatians 3:27). One cannot become Christian without the work of God in their lives. One of the works of God is the activity of the Spirit. When one puts Christ on in baptism, and one and the same time he and she are added to the body of Christ (1 Corinthians 12:13). The body is the church (Ephesians 1:22, 23). Christians are the body of Christ, they are the church of Christ.
Jesus states that one of His purposes for coming was to build His church (Matthew 16:18). Scriptures teach that Jesus loves the church, gave Himself for it, sanctifies and cleanses it with the washing of water by the word (Ephesians 5:25). How, then, can those who claim to be Christian not identify with His passion for the church?
The practice of believers in the Bible was to be active with the church (Acts 2:42). And in the Scriptures that give us Christianity, believers are exhorted not to forsake the assembling of themselves together (Hebrews 10:25). Many people want to be Christians without direction from Christ.
Why so many people believe they can be Christian and ignore the teachings of the person they claim to follow is evidence of the complete unfamiliarity of most persons with the teachings of Jesus Christ. Christians attend church. Why would they not?
I can make a box out of PVC and call it a church. It's not like Jesus comes to the Church and says, "OK, this is a church."
If going to church makes you Christian, will sleeping in your garage make you a car? And if you parked your car in your bedroom,, does that make it human?
A Christian could still be a Christian and a believer without going to Church. It is good to look at things in different perspective, like how the words in the Bible could be interpreted in many ways. One could still be a Christian and a believer by reading the Bible and forming their own answer to God.
Christian means follower of Christ, not person who goes to church regularly. True Christianity is about a relationship with God and church attendance is not a requirement of that. I do not think that it says anywhere in the bible that we are expected to regularly attend church meetings, though communing with fellow Christians is encouraged.
There is a limited or rather strict definition or concept of church. According to http://www.tillhecomes.org/church-ekklesia-kuriakon-circus/ the meaning for the word church is derived from the Greek word ekklesia which means an assembly of people. The site also states “church” is not exactly a translation of the Greek ekklēsia. The term “church” actually is derived from the German Kirche, which in turn comes from the Greek adjective kuriakon, “belonging to the Lord” or possibly the Latin circus. So, it is possible to have church at one's home in a park or at a restaurant if that's where individuals choose to congregate to celebrate and/or discuss God. However, if it is accurate that "church" is derived from Kirche which means “belonging to the Lord”, then church is simply giving your self to Christ and has absolutely nothing to do with attending a "church" at all. In a nutshell, attending a church does not make an individual any more or less of a Christian than another.
All that is required to be a Christian is the belief that Jesus Christ died for our sins, and the acceptance of him as your personal Lord and savior. However, worshiping with like minded people is a wonderful experience, and a great way to broaden and deepen your faith. Sometimes it takes a little while to find a church your comfortable in, but it's worth the effort.