*As for items mapping group differences in perceived risk of drug use:*

Five or more drinks every weekend—great perceived risk.

Offer before Effect: 54.3%; Effect before Offer: 47.3% (Chi<sup>2</sup> significant at 0,000). Regular smoking of marihuana—great perceived risk.

Offer before Effect: 49.0%; Effect before Offer: 40.2% (Chi2 significant at 0,000). *As for items mapping risky or hazardous behavior, like gambling:*

He/she played for money—once monthly to 2–3 times weekly.

Offer before Effect: 15.3%; Effect before Offer: 21.0% (Chi<sup>2</sup> significant at 0,000).

He/she played for money on slot-machines—once monthly to 2–3 times weekly.

Offer before Effect: 5.1%; Effect before Offer: 9.9% (Chi<sup>2</sup> significant at 0,000).

*Finally, the last items estimated a level of parental control:*

His/her parents are setting rules on what I can do outside—almost never.

Offer before Effect: 36.4%; Effect before Offer: 44.2% (Chi<sup>2</sup> significant at 0,000). His/her parents do know where he/she is at Saturday evenings—usually they do not. Offer before Effect: 4.6%; Effect before Offer: 5.4% (Chi<sup>2</sup> significant at 0.023).

**Figure 5.** *The results of the CAST screening – Problems with cannabis use.*

## **3. Conclusions**

In previous surveys, the mean age at two points was calculated for the whole sample, and the first offer of alcohol came earlier on average, while the effect of alcohol (i.e. being "tipsy" or "half drunk") felt subjectively for the first time was observed around 1 year later. However, closer inspection of the data from 2018 survey revealed that in circa ¾ of the cases the effect occurred either *later* (mean age = 15.45) or during the same year (mean age = 14.94), but in the rest of the cases, this effect was felt *before* alcohol was offered by an adult person (mean age = 14.21).

Thus, around one-fifth to one-quarter of teens circumvented common ritual of alcohol drinking initiation by adults, and they have tried to do it their own way, not adhering to any symbolic adult permissions. Subsequent analysis had shown that this group not only has used cannabis more often than the rest of our sample, but there were also differences in other variables, such as school attendance, parental control, group aggression, and legal and illegal drug use.

These findings are consistent with several studies, where regular or even daily use of tobacco and alcohol was connected to the presence of risk behaviors correlated with early start of cannabis use by 15-year-olds or less, and this was even more intensive when such an early initiation had happened even earlier—in the age of 13 or less [18].

Perhaps some conclusions and recommendations might be eventually formulated. But at the moment, it would be not possible to define clear and rigorous facts with relevant explanatory power—our study was only mapping one part of a broad problem—how teens do start to form their drinking, smoking, and later on sometimes also drug taking habits. Together with other sorts of behaviors, which are, so to say, not very socially desirable—such as truancy, aggression, breaking accepted rules. All that taking place in social environment is now more than ever changing very rapidly with many unexpected and global changes and challenges.

### *The First Offer of Alcohol from the Adult Person and Cannabis Use DOI: http://dx.doi.org/10.5772/intechopen.108805*

If there would be some interest to investigate this problem in the future more deeply, planning of data gathering and introducing of relevant variables should take into account quite concrete matters—like how to ask appropriate questions about important others from family narrow environment, but maybe also broader environment such as districts or communities, social occasions where such an offer of alcohol from adult persons might came, and then types of such persons, such as peers of perhaps older siblings, etc.

Small preliminary attempts were already made also at our school *via* several bachelor theses [19], with some results indicating that the offer of alcohol by adult person occurred typically during family events, where mostly father, less frequently grandfather, or uncle has played active role in these processes, while females were involved also, but very rarely, in comparison with males. On the other hand, there were also indications of more frequent offers during less formal social events than social events within the family used to be—with offer of alcohol from older friends, peers, or sometimes from siblings.

So the main findings of this study on the distribution of the sample according to the age on an offer and effect of alcohol might be summarized as follows:

